Love the game.
I've been playing this quite often.
Most of the time it's because i realy enjoy the in-game music i just wish i could find it and listen to it on my pc or even better on my mp3.

This "fusion" build-system is a really nice idea and just awesome. I really like it! :)
-Try to get all stars in every level to upgrad your towers asap or it will get really difficult ;)

really fun and creative gameplay, it's is shame there is so many problems.
controls feels unresponsive at times. also it would be nice if you could see enemies as you place cubes and use abilities at the end of the map.
wondering why there is no reset button for the upgrades or did i just miss it.

I think they should fix some bugs in the game but it's quite addictive and fun though

Like others are saying, it's a nice concept and it can be fun at first, but there are big problems that kill the enjoyment once you're several stages in.

Screen space feels really cramped. Unless you're being overrun and therefore losing, all the ground enemies you kill are still halfway off the screen, so you can barely work out what's going on. The upcoming wave message covers up several block spaces for a really long time, as well.

Some way to discard or skip blocks would be welcome, too, even on a cooldown or some other limitation. Once you have most of the block types, there are just too many times when there are tons of useless blocks in the way of getting any of the ones you need to build your attack towers.