Hungry Forest is the first stage in Shadow Cosmopolis.
The level starts off with a Rain D. A few more Rain D will spawn, then the boss (Elder Sloth) comes. After the boss spawns, R Ost will join the spawning party, entering the mix with a spawn rate slightly slower than Rain D.
Bringing Rich Cat and Cat CPU is very highly recomended.
Start off by waiting for the first Rain D. to spawn, then spam all your meatshields and King Dragon. Slowly spawn your expensive stuff. If you have the Cat CPU, turn it on when all your expensive stuff has been spawned and your wallet is maxed.
Megaphrodite is useful for this stage, as it can hit Elder Sloth for massive damage while protected behind meatshielding for the R. Osts and Rain Ds.
Line 1:Attack catcombo(s)
Line 2: 3 cheap meatshields, cyborg Cat and A.Bahamut Cat.
Strategy 2 (No Gacha)
lineup: Mohawk, Manic Mohawk, Eraser, Manic Eraser, Macho legs, Crazed Sexy Legs, Dragon, King Dragon, Awakened Bahamut.
Stall the Rain D.s with Manic Eraser until three stack. You should upgrade your worker cat to level 2 once they are close to your base. Let the Rain D.s attack your base and send out Awakened Bahamut along with meat shields to kill them. They should fill your wallet, so send out all your attackers once Elder Sloth attacks. If you timed your Awakened Bahamut right, you should kill, or at least knock him back once. Once Elder Sloth dies deal with R.Ost using Dual Dragons/Legs along with a steady flow of meat shields. Once you have dealt with him, you have beaten the stage.