By using cats with anti-red abilities (Island Cat, Crazed Whale and Bath Cat) and fast cats (Crazed Giraffe Cat), you can beat the stage before the Assassin Bears appear. When the player's Cat Cannon Power is upgraded to max level, it can kill the Assassin Bears, however, there are too many bears to kill with only one shot of the cannon.
An almost insultingly easy strategy is to simply fill your first rank with the first five Crazed Cats in unevolved form (granting an initial $1000 via Cat Combo), and place Awakened Bahamut in the second rank. Begin the stage, wait for your money to reach $4500 and push the instant win button.
Alternatively, if you do not have the Crazed Cats, two Elemental Duelist cats, if high enough level, can eliminate the Shy Boy quickly, which will give enough money to summon Awakened Bahamut.
Strategy 2 (Realm of Carnage)
- Line Up: Lion Cat, King Dragon Cat, Madam King, Koi Cat, Maiden Cat; Crazed Whale Cat, Island Cat and Awakened Bahamut.
One Crazed Whale and Island Cat should take care of the Shy Boy just fine, then finish the stage with Awakened Bahamut.
Strategy 3 (Cheese)
Interestingly enough, there is actually a way to cheese this stage. (Credit to Chillhola) By good timing, you can glitch past the Shy Boy and quickly take out the base. First, use an Anti-Red cat, such as Elemental Duelist Cat to attack the Shy Boy and eventually knock it back. As SOON as it gets knocked back release Maglev Cat to glitch past the Shy Boy and take out the base.
This strategy needs a Unit Speed Up (M) or 2 (Sm) in your first slot.
Send out 1 or 2 Ramen cats, Sexy Bathtub cat and Swimmer cat. Once the Shy Boy is almost dead, spam Crazed Giraffe and Lion Cat and hope that you beat it in time.
Strategy 5 (ft. Cat Combos)
*:Bony Bone (Reasearch Power up Sm) ; ^:Pulling String (Starting money up Sm) ; ':Duet (Worker Cat start level up Sm)
Line 2: Crazed Whale (18+), Island (20+15+), Crazed Giraffe (20+)
Begin the Battle, simply let the Shy Boy come to your base and send out the duel Fish. After the Shy Boy died, spam crazed giraffe and destroy the base. You can maybe put in smt to kill the shy boy faster or destroy the base faster.
- Note: This strat is just a revamped version of Nurse Wuffa strat, but with combos to increase the success chances.
Spam Ramen Cat (Rocker Cat) until Shy Boy dies
Ramen must be at least lvl 30.
then spawn AWAKENED BAHAMUT CAT...
Strategy 7 (No A. Bahamut)
Cat Combo : Bento Special (Money UP(M)), Cool Japn (Unit Attack UP(M))
At the begining lets Shy Boy come close near your base. Then spawn iCat → 3 Maximum the Fighter → spam Crazed Giraffe Cat.
Total levels : Maximum the Fighter - 35, iCat - 31, Crazed Giraffe Cat - 20, Worker Cat Rate - 27
Strategy 8 (6-Cat Line Up) by Okreally
The Cat Combo for Gold/Macho gives you a Start Up Money Sm Bonus. When Shy Boy appears send out Gold, Macho, Eraser, Thaumaturge and two Swordsman. Thaumaturge should weaken and Swordsman will be able to take out the Shy Boy in mere seconds. Spam Crazed Giraffes just before he dies so they can already be on their way. Keep in mind Shy Boy has 2 knockbacks. They need to get to the tower fast before the Assassin Bears spawn. This strategy requires perfect timing.
Torture Room is notable because it is easily the best stage in the game to farm building materials for the Ototo Corps, due to its ease and the fact that every material type except the meteorite drops from the stage. If you are short on materials, this is a very quick stage to run repeatedly and get some very quickly.