How do you get achievement 77 in achievements unlocked?

Type in the programmer's name (jmtb02)

For achievement 77, Programmer's credit, you must type "jmtb02" in while playin the game.

kill yourself on the spikes while going fast upwards

you have to skewer yourself at high speed on downward facing spikes

Hit 4-2 in that order. It's from The Hitchhikers Guide to The Galaxy.