The second idea is awesome, but you can make touching blocks not to kill you. Regarding hide and seek, also the cube should be able to "throw" the orb in a narrow distance and it will explode with a radius, maybe smaller. For the 3rd idea, make the cube and spike to swap characters in like 30 secs and add a goal, like activating some blocks or reaching somewhere. Other Things you can add:
I did this before you... cool you did it better then me. I only did in stereo madness and named it cursed madness cuz your the spike and the spikes are icons.
What if we Uno reverse the game and be good at it? (Also ive subscribed to you for about half a year on 2 accounts and would really enjoy doing this mechanic in episode 2:)
I had an idea kind of like this where an icon follows a preset path of Stereo Madness and you would play as a spike and kind of “sneak up “ on the icon
I'm no genius but with level one I'd you can get chased after finding a spike and you have a set timer to survive what's stopping you from just stating in spawn to kill the timer before looking so you have less time you need to run?