I only realize it now but it had some very unique game mechanics that even today you don't see very often (ok maybe that's a bit of a stretch but the mechanics were novel to me back then):
- Notably you have 60 minutes to finish the game. Dying doesn't reset the timer, so there is constant pressure to keep moving.
- There is a satisfying parry mechanic. This is still rare to see in 2d platformers.
- Incredibly smooth animation. This could be nostalgia goggles but the rotoscoped animation really stood out compared to other games of the era.
But still it was an amazing experience whenever I played it. I felt the pressure and the need to start again like no other game nowadays.
But maybe that’s just because I was a kid.
You can see if Dead Cells's parrying mechanic works for you.