Thanks for the feedback ! For the speed I should have given the skills right away because spamming the 'dash' should be enough to explore the level at a decent pace.. And I agree, it definitely misses some SFX, I started working on music way too late (like 2 hours before deadline)..
The ghosts replays were way more challenging to develop than expected, but turns out to work fine so I indeed consider capitalizing on this code and I already have some background story that could definitely use some writing. I sadly didn't have time to introduce it, as well as tons of mechanics that I had to leave on paper too. However, the color/sprite size limitation took me in a weird artistic direction that feels too constrained to be expandable as is.. So if I work on this again, I will probably go for some graphical rework while keeping some of the background ideas. I will definitely remember your comment in this case !