Finally finished.
Our “Birdman” game is finally completed to our satisfaction for now (obviously there are some bugs to iron out).
A few hiccups on the way but we got there. All three levels are implemented and the player can jump on all relevant blocks as well as progress to the end of the game. This game has turned into more of a speed-run game than a puzzle platformer as planned. We felt that a platformer without enemies was a little too easy so changed the aim of the game from “complete all levels” to “how fast can you complete all levels”. So far, the record stands at 32 seconds.
Without further adieu, here is a GIF which shows the game working: