This game is really hard. Didn't make it past 15 seconds to be honest. Not necessarily a bad thing though!
I really like that you managed to create something small with pretty much just one gameplay ingredient that still works and is fun for a while. Also +1 for using Tilemaps API to programmatically generate an endless level and going all in with low-res :)
Next time though, if you're doing a game where you die a lot, make sure the player doesn't have to wait for several seconds to retry (in this case by delaying the level begin) or it gets frustrating really fast!