I really really like the concept for this game - just a shame that it crashes so often (to the extent that it signs me out of Wordpress and I have to write this comment again from memory :P

Took me a while to get that first jump right, but when I did everything made sense and looked wonderful.

I'd suggest for the first time that they do each maneuver (e.g. dig/jump between cores) you have a text prompt on the screen to help. I remember not being sure what I was doing the first few playthroughs (my partner is on the other end of the line on Skype and she initially sounded confused as well).

Another thing; it'd be neat if the cores would swell and shrink (to make them harder to reach as you went on) and also the possibility of multiple cores would be pretty cool.

This is a great game and you should be proud of what you got done. I hope you'll consider continuing development on it!

Thanks for making this!

Really amazing game! Awesome concept!

A very unique game I must say. Have yet to see something quite like it. Was a little challenging at first to get the hang of it. But once I did, it became really fun!

rate 5 stars over all!

Cool game! A little bit hard, but still fun.

Awesome. Very innovative and pretty hard.

Woah.

I actually really love the presentation right down to the square browser window. You get into this weird do-before-thinking trance when you play this.

Fun concept! Reminds me a lot of Super Hexagon. It was a lot of fun, the controls were precise, the graphics were simple and the way you applied the theme was clever. Nice work!

Really nice concept. Can be a little tricky getting the jumps right initially but with a bit of practice it gets easier.
I love how recursive it is too, with a bit of polish this could make a decently addictive mobile game

Nice job, especially for your first LD entry :)

A really simple and fun concept! I love the minimalistic art. Gives it a nice sense of style. Great job on this one.

I like the concept a lot. Clever mechanics, I found it a bit hard to jump into the next circle but that just maybe be due to my lack of game skills haha. Great job!

(also, Web version didn't crash on me, so woot!)

by far one of the best games ive played today

Solid first entry! Really nice concept, graphics are simple but effective - minimalism done right. Hard as nails but not unfairly so.
I didn't have any issues with crashing that others reported.

Wow. Just... Wow. It reminded me of Super Hot, if you polished it I think this game could go somewhere! Congratulations!

Very fun! It's like the hacking game in Mass Effect!

I'm definitely nowhere near getting a 20 though! I think my high score was 6 ... :(

Great idea, good fun, well matched graphics and music.

Quite hard, as others have noted!

I've made it to 8 ! (and I'm not done with this game !^^) Very fun to play. It's really fluid and beautiful :)

This is just as impressive visually as it is technically. It is a little strange that the game goes beyond the bounds of the web player, however. This has a very Super Hexagon type feel and thats a good thing! Would love to see it on iOS!

Wow that is so cool. And great use of the theme!

Awesome game. Really hard... Loved it!!!!

Really awesome game. I love the music and the gameplay. Perhaps the graphics are a bit too minimalist for me

Controls should be reversed

Great Job!

Oh, a hard arcade game, great ! Loved it, congrats on making that nice game :)

was confusing at first, but hella-FUN when I got into it! VERY VERY addictive! LOVE it

Great concept and execution! Perfect level of challenge for me :) The jump height and controls seemed well tuned, and I really liked your use of minimalism graphically.

excellent, very innovative, trippy mood, good challenge, well done :)

It was really good!

This game is awesome. I can't think of much to change - but unfortunately I can't think of anything to help you expand on the idea either. It's the perfect contest entry, but will be challenging to move ahead with. Great job!

Liked:
- Excellent innovation! Very cool idea, I think it has a lot of potential.
- Graphically solid and unified, with complementary arcad-y music
- Good difficulty curve. Always feels like you could do better (doesn't go from trivial to impossible in 2 seconds)

Disliked:
- Controls didn't feel perfect. Felt a bit jittery at times, not smooth.
- It's missing... something. I don't know what. I really like the idea of the game, but something was holding it back from maximum fun. Maybe it just needs some polish. Like, making the jumps from core-to-core a bit easier, or preventing the sprite from going off screen as the cores expand.

Overall: very cool idea. I'd like to see a version 2.0 of this idea, because it has the potential to be really fun and really addicting.

Truly amazing!
Simple idea, simple control and a lot of fun.
It's like Super Hexagon but it work pretty well and in only 48h.

My only critic are on the music (it lack of the epic feel of the Chipzel song), and the theme it's not purely abstract, and graphics like SuperHexagon, and there is not a graphical theme like a real digger with a Spelunky look for example.
The jump is too rigid to give us a freedom feeling, maybe by allowing the jump to go until the other side of the circle.
And the crossed square is not the better choice as an avatar.

The fact that you can also only dig at one spot make the game maybe too rigid, allowing to dig everywhere but with more ennemy will already give more flow to the game.

But still a really fun playable (and it's not usual even here) game.

Very interesting game mecanisms and great pace.
congrats.

Really challenging and fun in a good way ! Not bad for a first ludum dare!

Thanks for the feedback everyone, especially the criticism! I do plan on continuing to work on this game in the future, so it's all going to be super helpful

Very cool take on the theme, and quite fun too! Minimalist art works really well with the audio, it's all very cohesive.

5 Star Innovation! Very fun! Awesome game, well done! Could definitely see this as a (popular!) mobile game! Such a simple concept yet so fun! Make it a mobile game, do it! :)

Good use of the theme, fun to play.

Excellent game ! The music is a bit annoying but this is still pretty good.

Awesome concept! Loved it!

Hard. I diskike the default keyboard mapping. Else it's a finished game. Good job.

Really neat mechanic - I liked this a lot. Sort of reminds me of Super Hexagon, except way more crazy and disorientating. Would be nice to have more things added than just the spikes.

Hard! Loved it, because of that & the visuals. Great job!