Thumbs up man, great job!
Supaplex was not among my favorite titles when I was a teen (cause it required thinking while I looked for action or smth epic → I’ve been bored playing it → I sucked at it :D). Also I remember the PC version I played had lagged controls.
Atm I tried 1st lvl of your remake, all goes smooth. Surely gonna play it.
Say, could any copyright issues be possible?
Is it possible to scroll map without moving?