Kinda rough. Timmy isn't very consistent on whether he is going to jump or not. Its likely something to do with his hitbox and the logic that determines whether or not he should be jumping. Also blocks can feel weird to grab and place. Timmy also has a habit of teleporting back to spawn, maybe make that player controlled? (Example: "Press r to reset Timmy"). Not a bad concept though. With some refinement I think this can do really well.