Very fun game, good difficulty ramping and interesting balance between the crystal-jetpack ability and the environment. A great example of good level design, though I think the checkpoints could be more balanced or strategic. The sound design could also be more normalized, as some sounds are much louder than others. Enough content in the game to keep me going for about an hour, and it ended with a good sense of accomplishment. Fantastic job to the dev! Looking forward to seeing what games he/she made since 2021 then.