Played a second time and got a personal highscore of 279k, which should be good enough for me. I like the idea very much, being Tetris but something else, feels quite creative! I also like the variations of the different blocks in the game, and was presented in a nice way too! Being able to choose from two possible "upgrade" is very nice and doesn't overwhelm the player in any way. Kudos for that! The intro and outro story make me giggle a bit too, which is very nice.
For some criticism, I'd say there should be block descriptions when you first select the block too, and not just only during the block is spawned. My second game over was exactly caused by not being able to read fast enough and understand what that block needed me doing, and that feels a bit unfair. I would also suggest the cursor stay where you last placed a block, rather than going back to the centre, but I guess both are good enough and I guess make it an option for the player to choose from.
Anyway, love this game quite a lot, will do a third run before moving on. Well done!