Marble-tilt mazes

Several red and black marbles sit on a flat tray, a red vortex indicates a hole in the tray. If a marble rolls onto or over the vortex it disappears. The goal is to drop all the red marbles into the vortex, it does not matter how many black marbles are lost in the process.

• Number of puzzles: 15
• Average play time: 1h+
• First published: 2000 (itch.io relaunch June 2022)
• Background:  http://www.clickmazes.com/mtilt/new-mtilt.htm
• Keyboard controls: arrow keys or WASD to move; [Z] to undo; [R] for restart.
• Touchscreen controls: tap at the main menu; swipe to start a roll; open the tab menu in the upper left to undo moves and restart.
• Hackable source:  click here

puzzlescript implementation - Andrea Gilbert - 2022  
puzzle concept & designs - Andrea Gilbert - 2000