I finished it. I got stuck figuring out what to do after you unlock the typing game. It seems like the mole person just appears at random. I didn't know what caused him to appear and whether or not I'm making progress at all. I had to look in the comments to figure out what to do.
Also, the platforming part gets a bit repetitive after a while. A suggestion is to add some upgrades that gets unlocked as the player progresses through the game. For example, some kind of teleporter, or something that makes you immune to spikes.
One thing that I did like is that the checkpoints are very nicely placed. They prevented a lot of frustration since you don't have to re-do whole parts of a level after you die.