The games is awesome but it's very hard tho best combination is use 2nd character and  shotgun then when you have your first level get holy arts then the holy fist lastly get the lightning thing  then after that build walk speed,fire rate,reload speed,and after that do anything you want. Why get holy arts? Well shotgun has 2 bullets and to activate holy arts you need to shoot two bullets that's also the same as the lightning thing then find holy fist every 1 heart  you have it increases your  holy arts 10+ every heart you have. Also build sight range because holy arts only activate when the enemy is on your sight. After you defeat the second boss tho it's gonna be so hard enemies have 300-500 HP each of them and there's the ball eye thingy that shoots lasers you can't beat him tho he have 3000-5000 go and the spawn rate  is so big you can't get to him and your gonna be trapped. So wait for the games full version. Bye see ya.