First off, pleased to see updates on older games that you produced!

The Sunray Tower itself. An interesting concept that i personally would like to see on a regular tower as well. Rather than upgrades you add worshipers or charging units or reloaders to the tower. As for the tower as it currently is (unique, single, manual shot with relatively low damage) I find myself ignoring it for most of the level except when the boss shows up.

The charge up is too slow to use on the weaker enemies and the stronger enemies don't really take enough damage to justify selecting the tower, selecting the fire option and then choosing which enemy to hit. As the way it is now if the charge up (a unique separate tower with 4 mages on it) and it had a cool down about as long as the reinforcements but with more damage (enough to 1-shot a troll or half a dark knights health) then I think i would end up liking it more.

Honestly i like the idea of making it a new regular tower as is except with an auto firing like the other regular towers or combining multiple towers to make it or something like it.