Reign of the Undead - Revolution

1) Cat Vision (Like cat, Cat) 
Survive 20 waves (1 Round). Activate and don't off Nightvision to the end of map as crusader. Starting with Wave 1
Reward: 100,000 UpgradePoints, 1 SkillPoint or (check down) 

I think this is unlikely to be implemented, but it is possible to make use of 2 energy per second for crusader class. And after end challenge, using Nightvision will be free again)

2) Wallhacker
Kill 5,000 Zombies through transparent wall
Reward: 300,000 UpgradePoints

(transparent wall - a wall through which Helga cannot kill us with boom attack, but we can shoot at it)

3) "SkillPoint Lover"
Complete 'Mother of God' or 'You mad Bro?!'. Use 'Reset' for SkillPoints 50-100 times, when all your SkillPoints used (maximum +1 for a Round) 
Reward: 1 SkillPoint

4) Survive 20 waves (1 Round), getting no more than 50,000 UpgradePoints (in Tab)
Reward: 30 Coins, 400,000 UpgradePoints

5) Block Helga's 'Grenades' attack 150 times by hiding behind a barrel
Reward: 300,000 UpgradePoints, 1 SkillPoint


Helga Hater II
Complete 'Helga Hater I'. Kill 25 Helgas. Progress will full reset, if you die
Reward: 150 Coins, 1,500,000 UpgradePoints, 5 SkillPoints