SUNROSE

Type in any seven letter phrase, and play with the corresponding SUNROSE.

SECRETS ??? !!!

Certain secret 7 letter phrases have special and unique effects, though there are a few easter eggs that aren't secret codes, and I won't be listing them on this page.

AIRHORN - Take a guess what this does (thanks @maffsie)
CREDITS - Displays a list of game credits
ECLIPSE - Don't look directly at it (thanks @PolClarissou)
GODMODE - Right click :) (thanks @Code_807)
HASHTAG - #SUNROSE (thanks @aaronr320)
IMMENSE - Closer than they appear (thanks @soroxis)
LOWPOLY - For older machines (thanks @maffsie)
NOCOLOR - Melancholy mode (thanks @ZteffenTBF)
NUMBERS - L337 5UNR053 (thanks @importrawdata)
RAINBOW - Choose your hue (thanks @importrawdata)
RAINING - Meteor shower (?) effect (thanks @TheRealJefe)
SILENCE - Quiet sunroses (thanks @Managore)
TAKORII - Enables Takorii mode (thanks @CNIAngel)
THEVOID - Realistic mode (thanks @PolClarissou)
VVVVVVV - Inversion mode (thanks @MentisCnidaria)

Thanks everybody for an amazing 2014, I hope I can bring you lots of great things in 2015 :)

Thanks to @Pithdog and @KaiClavier for help with the Mac version :D