Attack on Titanium (Insane) is the 5th Cyclone Stage. It appears every Sunday. Upon completion, players have a 30% chance to unlock Hoop Cat.
Battleground[]
- Infinite Super Metal Hippoes spawn after 233.33 seconds7,000f, delay 66.67~80 seconds2,000f~2,400f.
- 1 Sir Metal Seal spawns after 200 seconds6,000f.
- 1 Metal One Horn spawns after 166.67 seconds5,000f.
- 1 Super Metal Hippoe spawns after 133.33 seconds4,000f.
- 1 Metal Hippoe spawns after 100 seconds3,000f.
- When the base reaches 90% HP:
- 1 Metal Cyclone spawns as the boss.
Strategy[]
Metal Cyclone is the most durable Metal enemy in the game, so Critical Hitters are a must. It is recommended to beat some other Cyclone Stages first, as they provide additional anti-Metal units that greatly ease the fight. It is recommended to use Critical Hitters who can outrange Super Metal Hippoe, such as Major Space Cat, as this will make landing Crits on him significantly easier.
Critters with hard hitting, fast or guaranteed Critical attacks such as Jurassic Cat and Seaside Neneko can be very useful, though do be wary of the low range that most have. Nearly any Uber Rare or Legend Rare with Critical Hits or anti-Metal abilities is useful here, but Tesalan Pasalan, Kyosaka Nanaho and Berserker Cat in particular can really break this stage.
Strategy 1 (Cheese)[]
Because the enemy limit is 2, if the initial Metals are kept at bay, the Metal Cyclone will never spawn. Critical Hitters are ironically not helpful for this cheese. Do not bring any units with Long Distance, Wave, Surge, or Omni Strike.

- The listed DPS units are just examples.
Lineup: Crazed Wall Cat, Wall Cat, Macho Cat, Crazed Macho Cat, Paris Cat, UFO Cat, Bahamut Cat, Riceball Cat
Notes: UFO and Paris are not required, but can help. True forms of these units helps too.
- The listed DPS units are just examples.
Riceball is optional, but can help due to his Knockback Immune.
At first, max out money and wallet. After your money is full, start spamming meatshields. After ~1 min 40 seconds, the first Metal Hippoe will spawn. Most importantly, keep the Metal Hippoe BEHIND THE BASE.
After ~2 min 13 seconds into the battle, Super Metal Hippoe will spawn. With the meatshield stream, they'll be "invincible" and the enemy base will be free for you to attack without having to worry about the Metal Cyclone.
If you fail, bring a extra meatshield.
- Riceball Cat makes things even easier, as his knockback immunity will stop the Super Metal Hippoe from pushing the meatshields back.
Strategy 2[]

- Catornado is optional.
- The empty slots can be used for other critters or units that can knockback metal enemies.
Lineup: Eraser Cat, Manic Eraser Cat, Hundred-Million-Dollar Cat, Catasaurus, Catornado
Notes:
- Catornado is optional.
- The empty slots can be used for other critters or units that can knockback metal enemies.
Don't do anything before the Metal Hippoe starts approaching the base, then send out Hundred-Million-Dollar Cat and wait until the Super Metal Hippoe spawns. Once that happens, spam everything, and with decent luck, the Cyclone should die in a minute.
Strategy 3 (Cheese ft. Warlock and Pierre)[]
Line-up: Warlock and Pierre 27, Crazed Macho Cat, Crazed Wall Cat, Miracle Performance
Notes: Fill the remaining slots with all possible critters at hand. Preferably ones with over 8000 damage per hit like Crazed Whale
Start the battle by upgrading your wallet to lvl 3. Spawn Warlock ASAP. Wait till Metal Cyclone spawns. Once Metal Cyclone spawns, summon all critters, The boss should die within 30s. Then quickly spawn units with high speed to finish off the remaining base health. And like that, you don’t have to deal with any Sir Metal Seals or Super Metal Hippoes.
Walkthrough[]
| Video | Player | Notes |
|---|---|---|
進撃の鉄屑 (Metal Cyclone Stage) and introduce Hoop Cat - played by Uriboten |
Uriboten |
Schedule[]
English Version[]
- This stage appeared for the first time on March 24th, 2015.
- This stage will appear every Sunday thereafter.
Japanese Version[]
- This stage appears every Sunday.
- December 28th, 2014 to January 1st, 2015 (first time)
Trivia[]
- The English stage name is a pun on the Japanese manga series Attack on Titan, and the metallic element Titanium.
- Sweet Irony shares a Japanese name with the talk show Tetsuko's Room; the joke is that tetsu means iron.
















