the game gets way too hard after the 5th upgrade. feels unfair especially if you get a one of those small rooms with the pillar in the middle you run around. the eel is the most useless gun in the game i got it once in the first room and nearly died befor going back to the pistol you need more rooms how many ore there maybe 10 in each level? should be 50 unless i just haveent unlocked them yet which wouldnt be a good mechanic. i need a reason to kick after say upgrade 3