I am a fan of Mental checkpoint and watched the video after playing. I would love to see a fleshed out version as there's a lot of good ideas. 

I would mention issues, but you've covered most of them in your video, but here's a couple thoughts. 

Another interaction you may have missed is using Sentience as a double jump, as you can stand on it and lift yourself off the ground, then jump. 

In terms of puzzle design, I would like to see levels that need more than 1 ability to solve. I think the design space is there to be explored, but understably not explored fully for 48h.

Once again mhch love to Mental Checkpoint. Was a lovely surprise to see a gmtk jam from you, and I enjoyed seeing the development process. 

Had a lot of fun completing this game !

The "narrator voiceline" power is definitely making the experience much better, but it being a manually triggered action meant I often forgot to roll the dice on the yellow face, most times I remembered before triggering the next room but I missed several voicelines unfortunately. I can only imagine the laughs and tears I would have shared listening to those, the deep thoughts and introspections following the wise advices... 

Had a few bugs but nothing that was game breaking thankfully, despite trying things like swapping with the dice while holding it haha.

I probably cheesed a lot of the puzzles, picking up the dice through doors or using the wrong ability to complete the level, but that's not necessarily a bad thing, made my experience more special and funnier.

However I do think that with all those abilities, there isn't enough variance to really justify them. A lot are interchangeable in multiple puzzles, which kinda makes the abilities feel less useful. 
If the focus is to make a puzzle game I think it's really important to nail that aspect of each unlock completing a gap in the player's action set, even better if you didn't know you had a gap there and you jut discover a whole new set of possibilities, mind blowing style.
For a more adventure type of game though, it's less important to have tight mechanic design and the slight overlap between the powers means it makes it easier for players to do what they want because they don't have to think and remember of the single ability that allows them to do the thing they want, but that also means puzzles relying on those have multiple solutions and are generally easier to solve, while also being less different from one another (the abilities do similar things => the actions to solve the puzzle must then be similar too), and might make it less interesting because you can spam the same solution on multiple puzzles in a row.

I feel the latter is what happened, there was many ways to deal with each level, which makes the level design much harder to do as the amount of possibilities you'd have to account for and design around is too high.

Also does not help during a jam to have that many mechanics as you don't have that much time to polish, which makes each ability less polished overall.

Still had fun trying to solve the puzzles in not the right way, throwing my dice at rockets and rolling times and times again to try and get it to roll on the face I wanted rather than the one the game was trying to enforce.

One major disappointment though : when I got the green ability, I immediately went back and managed to get up in the hallway in the deceptive crack room and was met with this obnoxious dead end : 

Now I can go back watching the devlog :D

Edit: also, missed opportunity to name it Rolling Shutter Labs

got stuck in the level you need reflexes cause I run the game at 5 fps. still fun though 

Dice was hard to roll around, and maybe instead of having ex. 1 ability and 5 empty ones, have one ability on all 6 sides, and then when you get more abilities half and half etc.

That was fun ! Pretty cool level design, and great portal-like aesthetics ! Sounds are quite cool too, especially the narrator, but there might be some mixing problems, some effects are way louder than others, and the first time I used the green face, it was like a jumpscare

I find the concept original, but I don't think it is really used at its advantage, the dice feels mostly like a clunky way to select powerups, it's your level design more than the concept itself that make it interesting. That means a lot about the quality of the level design !

I got a bug at some point, where the cube disappeared, I think it happened because I managed to grab it during the death animation.  

PS : I love your videos, you taught me about so many little unity and C# tricks ! I did not know you did game jams, that's awesome !

You nailed the "Portal" vibe very well with the aesthetics and overall feel. Also, Nick's voice narration was absolutely hilarious :D

It's an incredible amount of rooms/puzzles you managed to do in such short amount of time, which means you don't have to sleep at all or have 30h days, either of which is cheating ;)

The one bit of criticism I have is audio mixing: in my opinion music is way too quite while some sounds (like getting new power) way too loud.

Cheers!

Really cool game, made me miss a time when first-person games didn't have to be shooters... presentation is amazing and everything is slick and smooth!

I really enjoyed this game (even if i were struggling a little hehe), amazing work for only having 48 hours to make it. 
So much detail went into this game, I was very impressed when I noticed the cube had scratches on it when playing the second time around.

I really like this game, the portal feel is there and the dev commentary is really interesting.
There were some bugs but I am sure they will be fixed after the jam ends. Maybe there can be some mainframe like glados or the cube telling the player what to do when introducing new things and mechanics. I found the dev commentary about the pillows and box sound effects hilarious :D 

ps. i managed to skip the exploding bridge by just jumping over to the other platform :D

Finished the game and my reward was a clip of taro's magnificent beard

------------------------------------------------------------------------------------------------------------------------------

Final Score: -∞/5

 +1 Noice Puzzle Levels!!

 +1 Noice Concept 

+1 Thick Juicily Companion Cube

+1 Noice Voice Hints

 -1 No Googly Eyes, funny IK legs and arms in Sentience (Brain) Mode

+1 Taro's Beard

-∞ There was noting in the forbidden hole