itch.io

Use the gun only at giant when he spawn zombies run to them and kill them with stick and when giant stuns shoot at his core

if you didn't know when you want to turn direction try to bait him to attack when it landed turn around and try to get passed through him before he attack for the second time

another tip is not to immediately kill both the zombie bcuz you can exploit them to get the i-frame and reset the climax/cum bar

If you have the android version, you can try to download it again. I have adjusted the difficulty. ~(=^‥^)ノ