Beep & Build
Snap command blocks together to guide Bolt the robot across the floor to its battery. Every level you solve adds a brick to your tower.
- Learn to code by playing
- Bolt gives hints, never answers
- Build a tower, one level at a time
Pick a level
Snap blocks, run Bolt
The blue arrow shows which way Bolt is facing.
Blocks
Press a block to snap it on, or drag it into your program.
Grow your tower
Counts reset when you reload the page. This sample saves nothing.
How it works
- 1You snap blocks into a program
Forward, turn left, turn right and repeat. Each level has a block limit.
- 2Bolt follows them, one block at a time
The block Bolt is doing lights up, so you can spot where a plan goes wrong.
- 3Missed twice? Bolt gives a hint
A nudge about the idea, like counting squares or spotting a pattern. Never the answer.
- 4Reach the battery, add a brick
The level is solved and your tower grows by one brick.
BBolt AI
A small robot helper. Follows your blocks, and after two missed tries gives a hint that points you the right way without solving it.
YYou You
The coder. You choose every block, press Run, and decide what to change when Bolt misses.
In this sample, Bolt’s hints are written ahead of time.