Pretty underwhelming to be honest, you don't really have enough control over your units for any strategy besides making a deathball and each unit you unlock is either completely useless or an upgrade that completely invalidates your older units. In addition every single level plays exactly the same way, upgrade resource generation while using the tornado and seed hail to keep your base safe, then spam your strongest units off cooldown until you win. To top it off all the girls share the same animation for each enemy, so in practice there's only about seven animations total and five game over CG. It's possible this last part will change but I'm not hopeful.
Short of completely revamping the resource and unit systems I can't really see how this is going to improve. If I were them I'd look to moving to a skill tree/class change system, diversifying damage types, make fewer stages but with set enemy patterns, tailor units to counter enemies and move the upgrades to resource generation and base hp out of the main gameplay section so you don't just open every stage upgrading them.
Review for v0.30.
Short of completely revamping the resource and unit systems I can't really see how this is going to improve. If I were them I'd look to moving to a skill tree/class change system, diversifying damage types, make fewer stages but with set enemy patterns, tailor units to counter enemies and move the upgrades to resource generation and base hp out of the main gameplay section so you don't just open every stage upgrading them.
Review for v0.30.