Theme Implementation and Special Feature Implementation:
The clock and the concept of temperature both function identically as a timer, making one of them redundant. I quite like how you showed this relation in the thumbnail with analogue clock hands on a thermometer bulb, but then you also added a clock to that.
I think you could have tried something a little more distinct with these two implementations. For instance: what if you had a clock for a timer, and then also had a thermometer that reacted to hot areas on the map (which you would then need to add) giving you both an incentive to move quickly and an incentive to move around more accurately. Just food for thought.
Fun Factor:
With such precise platforming, it pays to have a tight control scheme. Jump arcs shouldn't be perfect parabolas, but should arc more steeply on the decline. You can do this in Unity by changing the gravity scale on the rigidbody depending on whether the player is falling or climbing. More information here:
Gameplay:
A fairly standard procedurally generated platformer with a timer.
Audio:
N/A
Graphics:
I quite liked the player character and how he constantly looked up. I think you could have improved it a bit by putting the eyes on a seperate layer so that the sweat/melt droplets don't obscure them.
I thought the platforms weren't very interesting and the background could have been better.
I hope I've been helpful. I know this review may come a across as harsh, but I just wanted to argue for the rating I would give this game.