Battle Cats Wiki
Not to be confused with Catseye Nebula.

A Catseye is an obtainable item unlocked when reaching User Rank 1,600. Catseyes allow units to be upgraded past Lv.30, except Normal Cats and Metal Cat. Each Catseye allows the player to increase the maximum normal level cap of a unit by 1, but the player still needs to use XP to upgrade the Cat to that level. The maximum cap level increase allowed by using Catseye is level limit of +10, increased to +20 if An Ancient Curse is beaten.

Example: a unit can reach Lv.30 normally with XP upgrades. Using one Catseye will increase that unit's level cap to Lv.31+, with maximum up to Lv.40, or Lv.50 if the player has beaten An Ancient Curse. Beyond Lv.45, two Catseyes are needed per upgrade.

The Cat Unit also has to reach level 30 from XP upgrades first, therefore making it impossible for a player to use Catseyes on certain units before reaching specific User Rank levels, even if a player gained Catseyes beforehand.


From left to right respectively Special, Rare, Super Rare, Uber Super Rare, and Legend Catseyes.

Obtaining Catseyes

Catseyes can be obtained from certain Gamatoto Expedition areas, the Cat Shrine, or event stages. You can find the number of Catseyes you currently have in the Upgrade Menu.

Increasing level limit of cat units

  • The right top icons display the number of Catseyes you have
  • The upgrade button will change to the golden text colored Catseye upgrade button if available.


  • Legend Cats may not be upgraded above Lv.30 until An Ancient Curse is beaten, after which they can be upgraded to only Lv.40.
  • Legend Catseyes may be used as a substitute for other Catseyes if the player doesn't have enough.
Main BCEN (OldCurrent) • BCJP (OldCurrent) • BCTW • BCKR • 3DS (Name Comparisons) • Minna de Nyanko DaisensouJP only, removedSwitchRegional Differences
Spin-offs Kumanchu RoyaleJP only, removed, old generation phonesBattle Cats RangersremovedNyanko RunawayJP only, removedNyanko Defence ForceJP only, removedNyanko New JapanJP onlyGo! Go! Pogo CatThe Burgle CatsBattle Cats Quest
Related Mr. seriesremovedGirlsMonsJP only, removed • NamesutaJP only, removedKyoutou ProjectJP only, removedYuru-i GeGeGe no Kitarou: Youkai Dotabata DaisensouJP only
Main Menu
Main Menu Main MenuCat BeaconBCJP onlyInvite Friends to get MonekoremovedSerial CodesremovedGame Updates
Game Modes Game ChaptersexplanationMain Chapters LevelslistEmpire of CatsInto the FutureCats of the CosmosThe Aku RealmsLegend StagesChallenge BattleCatclaw DojoRanking Dojo
Cat Base Menu
Upgrade Menu Cat Units (DictionaryallFull ListallRelease Orderall)

Rarities: Normal (NN) • Special (EX) • Rare (RR) • Super Rare (SR) • Uber Rare (UR) • Legend Rare (LR)
Base Upgrades: Cat CannonWorker Cat • Research • Accounting • Study • Energy
Related: Level-upUser RankTrue FormSpecial AbilitiesTalentsTalent Orbs

Equip Menu Cat Combo (Main ArticleRelease OrderOld Version)
Treasure Menu ExplanationTreasure Festival
Dictionary Menu Enemy Units (DictionaryallFull ListallSoL OrderUL OrderRelease Orderall)

Attributes: TraitlessRedFloatingBlackMetalAngelAlien (Starred) • ZombieAkuRelicTypelessColossalBehemothWitchcollabEva Angelcollab

Gacha Menu Main ArticleFull ListUR GuaranteedStep Up
Other Menu Shop ItemsGamatoto ExpeditionOtoto Development TeamCatnip ChallengesOfficers' ClubMeow MedalsWildcat SlotsCat Scratcher
Items & Currencies XP • NP • Cat FoodBattle ItemsCataminsMaterials • Tickets • Catfruit/Behemoth StonesCatseyes
Battle System
General Battle MechanismReward Mechanism
Stage types Timed Score Reward • Restriction (No ContinuesContinuation StageRestriction Stage) • Gauntlet
Related to Main Chapters Zombie Outbreaks
Related to Legend Stages Special Events (Release Order) • Stage DifficultiesItem Drop Cats
Misc. Contents
MerchandiseBCEN ExclusiveBCJP ExclusiveBCTW ExclusiveBCKR ExclusiveRecovery ModePop Culture ReferencesApril Fools' JokesUnimplemented Features