Puzzles #462 & #463 - Tetrominous and Variation (Fourcells)

Fourcells is not as cool as Fivecells is. Tetrominous is not as cool as Pentominous. The combination of rules, however, is pretty neat even if puzzles can spiral into no solutions really easily. Solve as a standard Fourcells puzzle, but regions of the same shape can't touch.

puzz.link interface

As a joke, I also made an Isometric Tetrominous. Maybe the fact that it was made as a joke gives away the joke but I still think it's funny.

penpa interface