1) Don't make the inventory accessible only in real time! This was the main thing with RE5 that pissed me off. In RE4 you paused the game to switch weapons and/or heal, but in the sequel, you have to find that health item while zombies are shooting/running at you!
2) Final boss battles shouldn't be anticlimactic! Lookin' at you Resistance 2. I just killed a Kraken with a Pulse Cannon, a giant bug with shotguns and a carbine, a big-ass four-legged robot, and a Leviathan that makes said four-legged robot look like a chihuahua! The final boss battle should be something more than just running around in circles shooting at electrical orbs!
2) Final boss battles shouldn't be anticlimactic! Lookin' at you Resistance 2. I just killed a Kraken with a Pulse Cannon, a giant bug with shotguns and a carbine, a big-ass four-legged robot, and a Leviathan that makes said four-legged robot look like a chihuahua! The final boss battle should be something more than just running around in circles shooting at electrical orbs!