The runes symbol system on color is normally used by colorblind people to help them not be tricked by color. But if you put the rune symbols on color, you should also put the same runes on the things linked to that color.
Put the runes on the enemy (under, above, whatever), on the ring of % and on the warriors, that way, colorblind people could enjoy this game. Otherwise you're going to frustrate us :(
The key aren't really well handled... When you change keys, it sometimes revert to one key. You can only go back left after some time... Think about foreigners gamers and stop using WASD... use instead ESDF, QWERTY and AZERTY keyboard share the keys...
 "Epic Coaster"){kind=icon}
 "Dangerous adventure"){kind=icon}
 "Blue Knight"){kind=icon}
 "B29 Assault"){kind=icon}