B✦THINKamigBOBGAME CREATOR · GRADES 3–6
YOUR IDEAS. YOUR GAME.
🎮 CLASS ARCADE

Share your game. Play your classmates’ games.

THE GAME WORKSHOP

Make something playable.

Ask. Make. Improve. Grow. Turn your idea into a game, one change at a time.

BOB’S MOVES
READY TO PLAY

Bob is ready for your adventure.

Press Play test to hear his moves and see the results.

BUILD MODELEVEL 1
Collect coins. Clear required blocks. Reach the flag.MOVE ←→ / A D   JUMP Space
CHANGE THE RULES

Tell your game what to do.

Choose a suggestion, or type a supported command.

See every supported command

Edit a command by changing its theme, color, or texture, then press Apply. Themes: sky, forest, space, sunset, ocean, desert, snow. Colors: green, blue, red, yellow, purple, orange, white, black, or #RRGGBB. Textures: grass, stone, brick, wood, metal, checker, stripes, plain. Commands use built-in rules. Unsupported sentences will ask you to try a listed command.

Keyboard level editor

Select a tile above, choose a row and column, then place it. Rows run from top to bottom.

WELCOME, GAME DESIGNER

Your first game, step by step

  1. Build: click a piece, then paint it on the grid. Use Start and Flag to set the beginning and end.
  2. Change: try a command such as “add 5 coins” or “set jump to 14”.
  3. Bob’s Moves: watch the panel above the game for green good moves, red bad outcomes, and neutral movement. Use Speak moves to turn spoken commentary on or off.
  4. Test: click Play test. Use arrow keys or A/D to move and Space or ↑ to jump. Collect every coin and reach the flag. A key opens doors. Required Clear blocks vanish the first time Bob hits them. Clear every one before the flag unlocks. Double-bounce blocks start at 2. Land once to make them 1, then press Space, Up, or Jump in the air for a second bounce that restores the block to 2. Reuse it for another direction. Skip the extra bounce to clear it on the next landing. Bounce puzzle mode makes Bob bounce automatically; steer with Left and Right. Spikes and lava cost a life. Springs launch you. Use Up/Down on ladders. Checkpoint flags save your respawn spot. Ice is slippery. Place Portal A and B for two-way travel. Black holes send you to wormhole exits. Secret spaces are visible only while building and collect all coins in the current level.
  5. Block puzzles: place Clear blocks to create required one-hit targets. Double-bounce blocks preserve a connecting route: landing changes 2 to 1. Tap Jump in the air to restore 2. Without that extra bounce, the next landing clears the block. Clear all marked blocks and collect every coin to unlock the flag. Try the bounce puzzle starter for a ready-to-play example. Use Colors & textures for pixel-style platform and flag designs.
  6. Discover: place one Portal A and one Portal B for instant two-way travel. A Black hole sends Bob to the Wormhole exit. Place endpoints again to move them. Hidden Secret spaces collect every coin in the current level when touched; Bob still needs to reach the finish flag.
  7. Keep: Save project downloads an editable JSON file. Export playable game downloads an HTML game for teacher review and sharing.

Costumes use a single PNG. Movement adds a small bounce and direction flip; custom frame-by-frame animation is a later feature. The included Bob costumes use your approved Bob Bank artwork.

Click a tile with the right mouse button to erase. Undo restores the last build change. Use the keyboard editor below the workspace if you prefer.

There is no live class gallery in this version. Browser autosave can be cleared; keep your saved project file.
BUILD. SHARE. PLAY.

Class Arcade

🎮 Students: join your class

Keep the class code within your class. Your game is only shared when you press Share. Your connection is remembered on this browser.

🍎 Teachers: start a class

No approval queue. Students with the class code can join and share. You receive a separate private teacher key.

Have a teacher key?
JOIN OUR CLASS ARCADE

Open THINKamigBOB → Class Arcade
Enter this code and choose a nickname.

Keep this code within our class.