Project 100 by Jeno48 is a platformer which gets more difficult as the levels progress. The game currently has 57 levels as of writing.

Gameplay

You start the game with a green character which has to run and jump over various grey blocks to reach the end goal. The game is set to fastest time. The levels are also all locked; you must complete all previous levels to unlock a next one.

More entities are introduced furthermore:

• Red blocks will kill you on impact.
• Blue blocks give you a jump boost.
• Micro grey blocks which are simply more difficult to land upon.
• Falling red blocks.
• Moving grey blocks, which either help you move, or shield you from red blocks. White dotted lines indicate their direction of movement.
• Brown blocks, which can be moved. Those are usually used to make impossible jumps possible.

And so on.