The game has an excellent technical section.
The gameplay is reminiscent of Konami's mythical Penguin Adventure.

Ok, I've been playing this again and il drop some thoughts in here, I know you appreciate the feedback looneybits. :)

Lanes: It is kind of difficult to realise the separate lanes to begin with unless you been playing a few times.

Suggestion: You have 3 darker trials on the run path, maybe change this to 5 to show the player they are like lanes. After a period of time you could have these lighten/disappear as the waves/game gets harder. Or perhaps the speed effect you have could be rendered in a way they shows the lanes in a subtle manner nearer the zebra playing area.

"That's the deal, if you don't survive you won't get the stars."

I understand that, but i find that this really punishes the player. What i think will be a good idea would be to add another variable that gives the player something else to play for as well, maybe an XP, which could unlock things like a 'Jump' ,'invincibility' or 'continue' perk for a short while to give the player some hope of reaching the end of the waves. On many occasions i got to wave 4 after like 10 attempts only for the tree to kill me, (and i wasn't convinced i actually hit the tree) and lost all my coins on that run. Then to be honest i didn't feel like playing it anymore, had i got something for my trouble it would make it more the while playing or continue trying and not feel so hard done by.

i did notice that it does get slightly faster on some waves.

Hope this is helpful. :)

• The game appears to have 3 lanes. So it took me a while to realize that the game has 5 (and not that the game has gradual transitions).
• For whatever reason I did not get to keep any of my stars unless I cleared all of the waves (Firefox). So at first I thought it was impossible to unlock the other characters.
• Waves 2 and 4 of the four wave set are my favorite (but wave 4 should probably be faster).
• The game could probably use a mechanic to encourage risky choices.

Overall I liked the game, but towards the end of 100%ing it seemed to lose a lot of the charm.

Holy Cow  Zebra! this is tough Mr Looneybits. I dunno whats happened, but ive had about 100 gos at it and now my arrow keys are not working for your game. ive refreshed, restarted the browser but its not working anymore. is there a file that gets saved in a local when playing which might effect the game? its the most strangest thing i've ever encountered. :) il try again later. maybe my browser is broken. i'm using google chrome if that helps.

Love the look!   The constant stream of lines dashing by creates a great sense of speed and the Zebra is cute and looks like it's really hauling tail.  :)

 Feedbacks:

The lanes could be made more visually distinct.   Either by stretching them out, so each lane is visually wider on the screen, or by making the ground coloring of each lane more distinct.   

Some more visual feedback for the collisions would help.  The cut straight to the 'You died' screen works, but because everything moves so fast, I was sometimes left me wondering what I'd hit, or feeling cheated.   Actually showing the zebra hitting the tree would at least visually confirm for the player that they hit something.

Difficulty ramp is sharp.  Well, more like it starts hard, I wasn't good enough to really know if it gets harder.  ;)  Could maybe use a warm up phase just to introduce the idea of lanes, obstacles and coins before everything gets rolling.

Fun game though, which I had the skills to unlock that piggy!  :)

Fun, but it's really unclear where the hitboxes for the trees are.