Here's my game, made in 4 days for the #notGDC2019 Jam.
To play, default keys are Z: Jump, X: Fire, Enter: Start. Joysticks supported.

I haven't done anything like this in years, was quite the experience! To fit the minimalism theme, I went with emoji as the sprite graphics. All the tile graphics, logos, sound effects and music are stuff I either made myself or adapted from public domain. My apologies to your ears. I'm not experienced with platformers (shocking, I know) so writing some platform controls was both fun and frustrating. Air dash mechanics could be exploited a bit more, but only had time for a few levels. Your momentum is quite reduced when jumping during a dash, so be careful!

Updates:

3/23/19: Added a spark to "You Need to Dash" (Level 2) to prevent air jumping past.

Update 5 (3/22/19): Added back in a level that was accidentally cut from everything unless you found the secret door. Prevented a crash if you reach the final door!

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x. Licening and Attribution

(Pencil and Honcho):
Some gfx from Twemoji 2.5: https://twemoji.twitter.com/content/twemoji-twitter/en.html
Licensed under CC-BY 4.0: https://creativecommons.org/licenses/by/4.0/

(Blobs):
Bleb Master uses and adapts many emoji from editions of the Noto-emoji set. Some of these
have also come from "Blob Hub", which you can find here: http://blobs.gg.
The blob graphics themselves are licensed under the Apache License 2.0.

Special thanks to Vulapa for the final 4 levels!

~~Spoiler: Tap twice in a direction to dash~~

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