Thanks for the pointers.
I'd never heard Iron Pig so I looked it up & I can see what you mean about the similarities.
if there's ever a Zombie Bash 2 there's some ideas in Iron Pig that could inspire us. We'd already thought about different sword and gun types & also different fighting moves but didn't have time to implement those. It was our aim to keep the fighting as simple as possible and make it more timing based - more about rhythm than doing combos. But I think we could have expanded on this a little, we could have done some combos and also kept it simple and timing based.
We should also have made the game sprites animated especially the player sprite, we didn't think we had time but looking at our game now I think it's a problem. Seeing a game like Iron Pig shows how good the fighting animation sprites could/should be.