@Hyperboly
I'm assuming you are fighting viking monoliths? If so, i have a simple solution. First, but the viking dress on Natalie.(If you don't have it go find it in the icey place) Then when it uses its freeze beam, the viking dress has counter freeze so she'll still be up. Then use purify to defrost Matt and Lance.(they will still get to attack)
Although the game isn't glitchy, it feels like a bad game. There are many things you can improve on, especially deciding whether to have a bad platformer mixed with a bad puzzler, or one good puzzler OR one good platformer. Focus on one of those and the game could be a whole lot better, because I couldn't even tell it was supposed to be a puzzle game.
Its a nice concept and could have been a decent platformer, but with the lame physics, that kept making me accelerate quickly but hard to slow down, the slow paced and repetitive gameplay, and the lack of instructions were disappointing. The graphics looked weird with the gray scale in the back, with the bright vivid colors in the front, were again, weird, but definitely help me figure out what was interactive and what was just a background image. The music was also quite decent, but I can't say anything good or bad about it. What you're missing in this game is depth. There is no storyline, and it hardly feels like a puzzle game. Its too easy as a puzzler, but the bad physics make it too hard as a platforming game. Its also annoying how you already have already beaten a level, but one of those amoebae things push you into one of those kill ropes.