What this game needs desperately:
1. A daily login bonus system.
2. Reduced Spawn Protection, Spawn Protection ceases once the person uses any kind of weapon.
3. Ability to change HP into Coins.
4. A trading system.
The lobbies should honestly be fixed. Like 1-10 lvls in a single lobby, 11-20 in another, and so on. It is really annoying to get wrecked by a lvl 40 when you're just lvl 13
A few corrections (IMO) should be made in the game.
1. There should be a daily rewards system. 1 day = 100 HP, 2 days = 300 HP, 3 days = 1000 HP, 4 days = 1500 HP, 5 days = 10 Coins, 6 days = 15 coins, 7 days = Any random weapon.
2. Spawn Protection should be around for a much shorter period. Not more than 6-7 seconds, as then, whoever spawns can basically god mode their way through the waves.
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Thanks!!!