here are some little hints :
- 6 are awesome ! look for 3 X next to them, then fill all the other. If you can see it, it will be really easier.
- Try to not forget any X, so look for * !
- If you are really bloked, just try to darken squares randomly next to the area you began with, sometimes, you'll find one you just forgot =)
 "Picma Squared"){kind=icon}
 "Protector IV.V"){kind=icon}
 "Bela Kovacs and The Trail of Blood"){kind=icon}
 "Splitter Pals"){kind=icon}