The map looks nice but is a bit small. More movement freedom could improve this game a lot. Also turning up the music volume would do a nice job. The light effect for the spawn is waaaay to bright, i looked into it and tended to be blind for a second.
The Weapons are nice as an idea of combining it with the icons of classic windows programs. Sad is, that the last weapon only recharges, when it is equipped. But the shoot mechanics work nice and its cool that bosses are involved.