Unplayable ball - the damn control tab at the bottom keeps popping up and hiding it under a button.
Over all, I far preferred the gameplay modelk of Gravitee 1.
Not to bad. Now just needs balancing so it can't be won by just placing a bunch of upgrades arrow towers around the entrance. (Mix tower and tech upgrades - tower are more effective, but tech persist between maps.)
Got some serious problems. Few bugs - I've had several heros with no level up button - even when they have way more XPs than they needed.
I also hate that you can't proceed past new levels without having to replay previous levels to get xps to get skills. That just sucks.
You need to rethink the way your Zoc rule works with respect to cavalry. Typically cavalry would charge through enemy lines and, if they didn't become trapped in melee emerge on the other side, turn around, and come back in for another charge. Having them have to stop because of a Zoc is silly - They should be able to charge through (in a straight line) until they actually hit a unit to attack (which must be infront of them).
Needs to explain the combat rules a bit better. Why do I seem to get a lot more 'Weak Attack's than the goblins? What can I do to fix it? You also need to be able to scroll the message screen back as half the time it only shows three messages from the second half of the last attack.
Juries still out on randomly deciding who goes first each turn. Two turns in a row at the right time can give you a massive advantage.