Seems like a cute puzzle-platformer.
Sound design is a bit annoying.
I quite like CRT filters these days.
This game is quite minimalist, and I like it. It takes a while for you to unlock the only action other than jumping — and it’s a really simple and constrained action, with great potential for puzzles.
The minimalism is also expressed by the game not having a single written word anywhere other than the title/logo. The options menu is particularly clever in navigating this “no text” rule.

Bottom line: Elechead is a lesson in constrained design. Reminds me of VVVVVV in this regard. (And others.)