Mochi Tank

About Mochi Tank

Mochi Tank is a kid-friendly, diep.io-style arena shooter built in raw WebGL, starring a round soda-blue mochi tank with blinking eyes that track wherever its cannon is pointed. The whole arena is one big warm-cream square 6000 units across, dusted with a soft grid and a deeper blush border that pushes you back if you bump it. You share it with about 700 slow-drifting candy polygons and a handful of computer-driven mochi tanks that hunt shapes - and each other - while you carve out a corner to farm.

The one thing you actually do is steer. Drag a finger to pop up a floating move-stick, or use WASD and the arrow keys; the turret swivels to lock onto the nearest shape or enemy and fires on its own. (On a desktop you can nudge the mouse for two seconds to aim by hand, then it hands control back to the auto-aim.) That single-input design means a six-year-old can drive around popping squares while a grown-up min-maxes a build on the same controls.

There are four kinds of polygon to smash, and they are not equal. Pastel-lemon squares are everywhere (14 health, 10 XP), coral triangles are a bit tougher (22 health, 25 XP), periwinkle pentagons are rarer and chunky (70 health, 130 XP), and roughly one in sixty-six spawns is a giant lilac alpha pentagon - 600 health and a jackpot 900 XP if you can grind it down. Every kill, including wrecking a rival tank (worth 40 XP plus 16 per enemy level), pours into an XP bar; clear it and you level up, heal a quarter of your health, and earn a skill point.

Levelling is where the depth lives. You bank one point per level across eight stats - health, regen, body damage, bullet penetration, bullet damage, bullet speed, reload, and movement speed - each capping at eight pips. On top of that sits a sprawling class tree of 61 tanks: a basic tank branches into Twin, Sniper, Machine and Flank at level 5, those split again at 10 and 15, and at level 20 each tier-3 class forks one last time into a Heavy variant (slow, fat, hard-hitting) or a Rapid variant (thin, fast-firing spray). Build a long-range Ranger sniper, an eight-barrel Octo, a wall-of-lead Streamliner - the choice is glowing options above your tank, and picking one never pauses the fight.

It is a pure endless survival run with no levels to clear and no win screen: you simply grow as big and powerful as you can before a stray volley or a body-slam finishes you. Your score (your level times 100 plus current XP) is saved as a personal best on your own device, and a game-over card shows the level you reached so you have a number to beat.

Want to get better? Read our full A Beginner's Guide to .io Games guide.

How to play Mochi Tank

1. Tap the play button (or press Space) on the start card to drop straight into the arena - there is no menu to wade through.
2. On a touchscreen, press and drag anywhere to summon the move-stick under your finger and drive that direction; on a keyboard, steer with WASD or the arrow keys.
3. Leave the shooting to the tank: the turret locks onto the nearest polygon or enemy and auto-fires, so just line yourself up for a clear angle.
4. Farm the candy polygons - start on lemon squares and coral triangles, then graduate to pentagons - and ram or shoot rival tanks to fill the XP bar above the ad strip.
5. Each level-up gives one skill point: tap a stat in the bottom-left column (or press keys 1 through 8) to add a pip to health, damage, speed and the rest.
6. When glowing evolve options appear above your tank (at levels 5, 10, 15 and 20), tap the silhouette you want to switch classes, then keep surviving to push your level - and your score - higher.

Controls

Tips & strategy

• Stay mobile. Strafe in slow circles while farming so enemy bullets and ramming tanks have a harder time landing - standing still on a pentagon is how runs end.
• Spend your first few points on health and regen so you can soak hits and self-heal between fights while you learn the arena's flow.
• Hunt the giant lilac alpha pentagons for that 900-XP payday, but chip them from range - they have 600 health and ramming one trades your hull away for nothing.
• Your enemy is your friend's enemy: AI tanks fight each other, so loiter near a brawl and clean up the low-health loser for the kill XP.
• Pick a class that matches how you like to play - Sniper and Assassin reward patient long-range shots, Machine and Gunner builds spray up close, and Flank, Octo and Quad cover every direction at once.
• At level 20 the Heavy (-x) finals trade fire rate for fat, hard-hitting shots while the Rapid (-z) finals do the opposite - choose for your stat build, not just the silhouette.
• Don't sit on unspent skill points; the badge pulses for a reason. Pips you have banked do nothing until you tap them in.
• If your health bar dips, back off into open space until the regen kicks in (it pauses briefly after each hit) before diving back into the swarm.
• Watch the level badge - it reads as 'current / next-unlock' (like 7/10), so you always know how many levels until your next class fork.

Game features

• An instant-play, diep.io-style arena shooter drawn in raw WebGL - rounded mochi bodies, polygons and rotating barrels in one batched draw call, no libraries and no loading screen.
• Drive-only controls: a floating drag-stick or WASD, with a turret that auto-aims the nearest target and auto-fires (optional 2-second mouse aim on desktop).
• A 61-tank class tree: from a basic tank up through Twin, Sniper, Machine and Flank, branching at levels 5/10/15/20 to specialised Heavy and Rapid finals.
• Eight upgradeable stats capped at eight pips each - health, regen, body, penetration, bullet damage, bullet speed, reload and movement - one point per level.
• Four candy polygons with real stakes: lemon squares (10 XP), coral triangles (25 XP), periwinkle pentagons (130 XP) and rare giant lilac alpha pentagons (900 XP).
• A 6000-unit open arena seeded with ~700 drifting shapes and a live pool of rival AI tanks that farm, snipe, flank and chase - and fight one another.
• A non-modal evolve strip and a one-tap stat column that never pause the action - the battle keeps running while you upgrade.
• A kawaii look throughout: blinking eyes that lead the aim, pastel blush cheeks, soft shading and a warm cream grid battlefield.
• Looping background music plus synthesized Web Audio effects for shots, pops, hits, level-ups and class evolutions, with a one-tap mute that the whole site shares.
• A saved personal-best score and a game-over card showing the level you reached, so every run has a target.
• Runs in any modern browser on phone, tablet and desktop - no download, no sign-in, free to play.

The Soda-Blue Mochi That Grows Up

The thing we keep coming back to in Mochi Tank is how the game hands you exactly one job. You steer; the turret swivels to the nearest shape and fires on its own clock, and on a desktop it only reaches as far as its bullets actually travel, so aiming is really a question of where you stand. That leaves your whole attention on positioning, which is where this genre lives. Even the start card is alive, with the idle tanks drifting and your own soda-blue mochi slowly spinning and trading shots, so the arena is moving before you ever tap play.

The smartest, quietest touch is the camera. As your tank levels it physically swells, and the view widens in lockstep with its radius until both top out around the early thirties. A fresh level-one mochi reads a tight pocket of the cream-colored grid; a swollen veteran surveys a wide stretch of it. Your growth literally changes how much battlefield you can see, so a level-up shifts your perspective rather than just your numbers. The opening is forgiving on purpose. You carry fifty percent more health than an equal foe, enemy fire lands at half strength, and a flickering shield covers your first couple of seconds.

Depth hides in the 61-tank tree. Because evolving never pauses the fight, you pick a branch while still dodging, eyes flicking to the glowing silhouettes above your hull. The level badge even reads as a countdown, seven of ten, so the next fork is always in view, then drops to a plain number once you pass twenty. The AI is no backdrop either. Chasers, snipers, flankers and farmers each hold a different range, steer apart so they never clump, and weight the player higher than each other while still happily brawling among themselves. A farmer only fights when you corner it.

It genuinely suits a wide table. A six-year-old can drive in circles popping lemon squares and watching the cheeks blush and the eyes track wherever the cannon points, while an older player nurses a long-range Ranger or a five-barrel Streamliner on the identical single stick. The honest read on difficulty: the first stretch is generous, but once rivals spawn near your level the giant lilac pentagon becomes a trap, six hundred health and a slow drift that begs you to ram it and lose a long run in one bad nudge. There is no win screen, only your saved best and the pull to push one level further.