This one was unexpectedly good. I'm not normally a fan of this kind of retro style, but it's so well done here I'm more than inclined to forgive it. The mechanics are tight if occasionally punishing, and it has just enough story to hook me as a player.
I always get lost in metroidvanias and this one was no exception, but I enjoyed my time in it.
That this is based on a GBTK game is wild, but I gave that version a try and it didn't seem that bad (I didn't play it long enough to see if it got worse later).