Apologies for the late feedback. Here it is:

Astonishing job!
The level of polish is amazing. It is a feat to get this level of polish even if the jam's time constraint wasn't in place.

First of all, of course what stands out is the visuals of the game. By itself, the artwork with the pixel art is already really good, but with the addition of the shaders you were able to give soo much more character to the game. It feels like I'm playing some modernized version of an arcade, really cool stuff.

I liked the funny vibe!

It's good to see that you were able to have very consistent mechanics created in this short time. Any time I lost the level it never felt like the game was cheating me out of a win or just bugged out, it was always my fault. This is always an important aspect of a game, but is an even bigger factor in a game like yours where the player only has a single input.

Really good work with the music.

The main thing that I felt was missing was more variance to the obstacles, specially of a more dynamic one, which could be one that moves, or has a different physics interaction with the player, like bouncing them off maybe.

The objective is also a bit unclear the moment you get into the level. Particularly because of the similarity to something like the Chrome Dino Game, that even you referenced, it initially seems that the only priority is to survive. Then it takes the whole level of taking it easy to realize you lost because you were not fast enough. So an indication of the objective or a tutorial at least on the first level would definitely be welcome.

I think you have an awesome base that is already good by itself, and if you wish to expand upon it can be even better. I'd recommend keeping the rock with just one input and working with what you can add to the level.

When it comes to your GDD, it is lacking depth in all fronts.

Remember that the GDD is not a task that has to be done before or after the development, it is an important first step of development itself. Other than being part of this jam's submission, the reason why it's important to create a solid GDD is because there is a lot of value during making a game to have a clear reference of goals, inspirations, what are you trying to achieve, mechanics and interactions.

Especially when in a team, it makes communication easier, reduces doubt, and makes for less reiterations needed.

It is not meant to be a presentation piece, but a source of truth for the developers, it's what should drive your decisions.

So especially if you plan on expanding the game from here on out, I'd invest some time into a more robust GDD. Detailing more of the type of ambience you are creating, the mechanics and how they interact with each other, visual references to the art. All of these will help you during development to have a clear mind of what you are trying to achieve.

This will not affect your game's chance to enter the top 10 games

Quite a funny entry, enjoyed playing!

I like the textures and vfx, audio loop can be a bit much after a while, there's also a purple spiky plant thing that my brain just thinks is "background" and then I suddenly lose my lead because of it :P

Very unique concept and being a boulder of death is definitely a weapon of mass destruction! 

Well done!

Short, sweet, and to the point! Perfect length jam game, nice and easy to pick up and play. Good stuff thanks for submitting!

Very fun game. The sounds effects and music were great and the visual variations in the levels were really nice. I appreciated being able to choose the levels from the menu, since I needed multiple attempts on the ice level. Great job!

A short, but neat experience! I like the sound design and the art. The level design is another thing that surprised me with the ammount of polish it had (especialy considering that you guys not only did one but THREE levels). It kind of reminded me of that old Sonic the Hedgehog where you chase Eggman which, for some reason, can outrun you for a good while. I would suggest you change the thumbnail of your game to call a little bit more attention to it, because it definetly deserves it!

nice nostalgic gaming, quick, easy to play and fun , also that sound when you crush Wyoming Jim XD

Fun game and I instantly got hooked! Thank you so much for the volume and graphics options! Maybe audio or visual feedback if you pass or fail a level? Overall fun game and I can see this being a game with soooo many levels and fun on mobile. Great work!

Yes, great minds think alike! Boulders are the greatest weapon!

I wish there was some unique obstacles for each themed level. Very solid game as whole.

Neat spin on chrome dino game!
I think, it would benefit from procedural elements/a way to make more levels with increasing difficulty.

Also, appreciate the options to disable CRT

This is quite a short but sweet game. I do like it a lot. Gameplay is simple enough the understand, not too hard but not a cakewalk either. The graphic is nice too with the CRT effect. I do with the game will have some more to offer in the other stages though, it now all feels the same but with just a reskin. Also would be great if we knew how many pots/snowmen we flatten on the way, should be a nice way to add some replayability to the game. But anyway, good job!

This is such a fun little game. I will beat all 3 levels.

Wyoming Jim must've done something really bad to this boulder, because it does NOT like this guy!

The CRT filter is simply awesome, the effect on the "You Win!" text looks super cool, and the pixel art looks really nice. The music gives this really interesting and odd atmosphere to the game that's kinda hard to describe. It feels like danger is approaching, but *we* are the danger. 

Only thing I'd point out is that the estalagmites maybe could've used something to stand out a bit more, like maybe a black outline or something of the sort. I thought they were part of the background at first, and there were moments I'd forget they were obstacles because they just blended in really well with the scenery. AKA I have skill issue.

I really enjoyed this, though. It was a short and sweet experience that controlled really well, was fun and looked awesome. Good game!

Very fun and satisfying game! I especially like the graphical effects.

I like the graphics a lot! Cool game!

that was fun

"Thor mode" i didnt know what to expect and i lost very quickly laughing. Fun game :D  tryin to get all the breakables is a challenge xD

Been watching the development regularly in the discord voice chat.

This game is a great theme implementation, is visually appealing, and is straightforward to play.

I like the GDD setup.