Flappy-Bird Pullup
This was great motivation for doing pullups.
Pretty simply, moving your face up and down controls the flappy bird.
To dodge the pipes this means you not only have to do a pullup, but also hold that position while you wait for the next pipe to appear, harder than just doing a regular pullup!
Arguably too effective, this led to a lot of sore muscles.
Options are:
Easy / Hard mode- Hard mode is actually easier! (since you have to hold the position for longer)Head / Shoulder- Which body part to track