It's a pretty hard game, but fun either way! Despite Queens being the most powerful piece in Chess, they didn't feel as powerful in this game compared to the Bishops, and I think it's cause of the Bishop's speed and frequency to charge/alternate course. Also Bishop hits constantly forced me off the stage numerous times, and at one point sent me flying on top of a pillar to cheese them.
If I may suggest some things I thought of during gameplay, I think the lower used weapons would be more relevant if I could see a reticle to aim with, and possibly upgrade throughout the game. Sniper Rifle would be very good if the bullet traveled faster, allowing players to instantly kill some pieces if they knew their placements. I also think weapon switching if it was faster, would allow maybe a weapon diversity, and add a sense of a faster pace of gameplay like Eternal.