The concept is great and the mechanic of flipping world+regain time is superb! Magnificent presentation! Nice work!

the world flipping felt ever so slightly to jarring, maybe adding some camera movements to it to show the world rotating, other than that it was very fun and cute, great work!

Story and cutscenes of this game are really cute. Also I like art style.

It's a bit tricky with spikes out of sight but in general you did good job!

Ok nice concept with a strong VVVVVV vibe. Like the cinematic also, really convey the story/feeling with minimalist artstyle. On the technical part, there is room for improv:
- when falling, getting close to a wall stop the fall, i'm assuming you put vertical velocity to zero everytime you collide? maybe you should just check for ground only.
- You should make a animation or a small coroutine to inverse the screen, it becomes really confusing to know which is where if you just swap
- Remove the tutorial everytime you fail level 1, it's kind of frustrating

The concept is really nice, and the sand doggo is adorable. I really like the hourglass mechanic because it makes for some interesting movement, but I found the levels to be somewhat difficult and reliant on memorization. The fact that the dog keeps some of its y-velocity after flipping makes it so flipping right before hitting a spike still kills you. I can understand why that would be done, because otherwise, the player can basically fly by spamming the flip button while mid-air, but because there are spikes outside of the player's view placed right underneath them, the player needs to memorize where they are and shift to the side.  There's this one spot where this is subverted, and instead of landing at the side, the player needs to hold still. At first I thought this was clever, but then after a lot of restarts, it became a point of memorization. In my opinion, if the game is this difficult, there should at least be a checkpoint in the middle. What I did like though was the art- the cutscenes are great, the background is clever and helps with reorientation, and the sandpeople are nicely designed and named. If the game was a little more fair to the player, I'd enjoy it a lot more.

Nice and beatiful game! 

I have an observation, when you flip the environment, the dog do a mini jump, and sometimes when your are close to the spikes, you die and then you need to do all the level again