Program your mecha. Light up the grid.
A coding puzzle game: plan commands, call procedures, master recursion — and guide your golden mecha across 210 handcrafted levels in 7 challenges.
Free to start · No ads · Works offline
Think like a programmer
Every level is a tiny program. Write it with drag-and-drop commands — no typing, no tutorials needed, just logic.
210 handcrafted levels
Seven challenges, each with 30 curated puzzles — from your first WALK to brain-melting finales. Every level is machine-verified solvable.
Procedures & recursion
Main memory is tight. Pack repeated moves into P1, P2 and P3 — and let a procedure call itself to loop forever.
Sensors & toggles
IF runs the next command only on an unlit tile. Toggle levels turn lights back off — parity puzzles that flip your thinking.
Portals
Step on a swirl and warp across the board. Facing is kept, height can change — order of moves suddenly matters a lot.
Two robots, one program
Challenge 5 runs the same program on two mechas in lockstep. What helps one may strand the other.
Ice floors & ordered lights
Challenge 6 sends you sliding across ice until a wall stops you; Challenge 7 makes you light the numbered tiles in strict order.
Kid-friendly & private
Gameplay runs entirely offline. No ads, no account, no data collected. Play in 16 languages.
Screenshots
Isometric boards, an expressive golden mecha, and a program bar that reads like real code.
How it works
Three steps, endless "aha" moments.
Build your program
Tap commands into MAIN — WALK, TURN, JUMP, LIGHT — and procedures P1–P3 when slots get scarce.
Press RUN
Your mecha executes the program step by step — walking, jumping and stomping lights with squash-and-stretch charm.
Beat the par
Light every blue tile. Solve it in fewer commands to earn all three stars and unlock the next level.
Seven challenges
Each challenge introduces one new idea — then remixes everything you know.
CHALLENGE 1Basics — sequences, elevation, procedures
CHALLENGE 2Toggles — lights can turn off again
CHALLENGE 3Sensors — IF conditionals
CHALLENGE 4Portals — teleport across the board
CHALLENGE 5Dual robots — one program, two mechas
CHALLENGE 6Ice floors — slide until you hit a wall
CHALLENGE 7Ordered lights — hit the numbers in sequenceChallenges 1–3 are free. Mecha Logic Pro — a one-time in-app purchase — unlocks Challenges 4–7 and every level.
Ready to think in code?
Free to start on Android. No ads. Just you, a golden mecha, and 210 puzzles.
