Post GMTK 2020 Jam "Jam" review:
I already played this game during the jam and thought it had one of the most creative and unique concepts. The main mechanic is very clever and gets build upon neatly with the pendulum and the clickable boxes.
I think with some work this could easily turn into a successful full release!
Imo the movement could still improve a lot. For the first few rounds it felt like I was just fighting with the controls to not fall into spikes. The hitbox of the spikes is way too big and you shouldn't be able to get hit from the side. The jump is a little bit too short as it reaches only slightly above 2 tiles and it's very annoying when it misses and you have to do it again. I regulary got some movement bugs where I was unable to move for a short amount of time especially after jumps.
Because you have already working physics in place something like moving crates or rolling barrels would be a great addition as they would also interact with all the other mechanics. The player could move them or when the level turns they could crush the player. Also something like explosives or liquid would be great but I don't know how hard this would be to implement.
The UI could be more clean. Maybe it's just my preference but I'd prefer it if all the valuable information would be right above the playable area and not on the side. Also small and big turns should have different symbols. Then there are also many possibilities for new variety of turns such as full turns or very slow turns.
Lastly it's good in some ways that all the levels have the same size but you could also think about spicing things up, for example asymmetrical levels or levels that go beyond the borders of the screen.
Anyways, I think this is a very clever mix between a puzzle and a platformer and hope you expand on your idea even more in the future!