This is inspired by netgrind's SSSnake series (which was made into the compilation game Snakes on a Cartesian Plane). It was also primarily inspired by the "dreams" in Run, as well as DefeatMe.

Eat the yellow squares. Eating two yellow squares will create a new snake for you to control, turning the old snake into a looping obstacle.

Controls:

Arrows - direct the snake. You can wrap around the screen.
Other keys - press when you die to restart.

You are A SNAKE of the TOMB OF LORD TUTENKHITTY, supreme overlord of this MOST ANCIENT TOMB, and you WANT OUT.

Slither through the air, bounce off walls, dodge PEASANT SNAKES and PSYCHOTIC PHYSICS BADGERS and ORANGE RUBBER THINGS, collect USELESS SHINY SHIT because you're a SNAKE and you DON'T KNOW BETTER, and escape from the TOMB OF SNAKES! Tutenkhitty. Whatever!

Be sure to check out the MOST AMUSING PREQUEL, The Tomb of Tutenkhitty!
And finally, SUBMIT YOUR WILL to the COSMIC BEAUTY of the SEQUEL, The Tomb of PHYSICS BADGER