Given this was made under limited time, I would say this game is ok. It looks decent, and while the puzzles aren't anything new they work fine. It's a bit janky, and while I like the ambition of the camera angles for adding to the atmosphere, sometimes it makes the platforming frustrating. I am however willing to give it a bit of slack for being part of a game jam, as I expect these sorts of issues to arise from games which are made in such a short time. 

However, even taking that into account I am ultimately disappointed in the game as it's not particularly interesting or fun. There's not much gameplay-wise that's particularly innovative or engaging, and while there is some storytelling happening, both enviromental and the things the MC says and reads, there's not really anything of substance that would hook me into caring about them or the world they're in. It feels like information is deliberately held back in order to interest the player and get them to try and fill in the blanks themselves, but I feel like too much has been held back and so there's not really anything for me to start theorising with. In that aspect it feels incomplete, like the game was leading up to something more but had to be quickly wrapped up (which makes sense for a game made on a time limit tbh). Whatever the case, I hope that the game has been a good learning experience for the dev, as I think there is potential here and maybe the idea which resulted in this game will lead to a more fleshed out and interesting future game

Neat!

I really liked the idea and style of this game, but the motion blur was too nauseating to get past the first part. If there is ever a way to turn it off, i would definitely revisit it.

Great game, gives me 2018 nostalgia!

seems like a nice game but i didnt really enjoy playing and its a bit too overstimulating

Lots of long and quite dull puzzles where a false step requires a long dull trek back to the start. The boat ride is the worst. 

Concentric tries to create a fast-paced experience with easy to learn and tough to master gameplay, but in total it amounts to very rough gameplay. You need to collect glowing orbs as fast as possible to get more points; the slower you collect them the less points you get, the more orbs you need to collect to beat the level. The lower your time, the more stars you get. This whole system could have benefited from simplifying; make each level beatable via collecting a specified number of orbs. The faster you do it, the more stars you get. Easy to understand, simple, less punishing. As it stands the consequences for failure are astronomically higher, and more complicated, which leads to a more frustrating experience. That said the levels are well constructed and gameplay twists are explored at a good pace.