Love this game 5/5 but i never use slow motion. I feel like I'm wasting precious bullets. Maybe a different charger for slow motion or one that fills up automatically?
For colossus I used goblins, hobbits, and dwarf engineers with 3 spell casters. None of your "good" units like death or white tiger will work because their re-spawn time is too long. You need a constant stream of expendables in order to stall him, and let range dps do the work. Also, pick off incoming enemy gorillas with spells, because they can stall your stream of reinforcements and let the colossus march foreword.
Is it just me, or do all of the CPU's dodge way too easily? I have Redzilla and it took his fireball attack 6 times just to hit the guy once. (Not exaggerating) This happens to me quite often. Does this happen with anyone else?