Assassin Bear (ブラックマ Burakkuma, Black Bear) is a Black enemy that only appears in Legend Stages.
Assassin Bear is the Black variant of Teacher Bear, and is one of the fastest enemies in the game in both attacks and movement, often resulting in all your cats being wiped out immediately. At 100% strength magnification, he deals 3,000 damage per hit, which might not seem like much, yet he keeps himself very safe with a range of almost double that of Dark Emperor Nyandam. The ideal solution to defeat him is with the Cat Cannon, as he has some of the lowest health in the game (around 550 on average). The Assassin Bear can be seen in the Challenge Battle twice, when the enemy base is at 90,000 and 10,000 health.
Some stages give Assassin Bear extremely high strength magnifications, peaking at 10000% in Furry Cavern and Forever Fishing. In these cases, he cannot be killed in one-shot by a Cat Cannon, making him a near-impossible enemy to defeat. Thankfully, these stages make it easy to avoid fighting him.
Assassin Bears are usually used as a means to guarantee defeat. They will spawn on some levels after two Ms. Signs have appeared (around 30 mins), for example in Chubby B. Goode, and Pitfall Zone. However, this does not happen on every level. These also spawn consecutively to add a time trial to different stages. In some stages, the Assassin Bears get spammed after 1-3 minutes, for example Last Gang and Torture Room.
When Assassin Bear was first introduced, he used to instantly refill all of the player's money when killed (see Assassin Bear's description), but now he does just the opposite; he gives only one cent.
The number-one way to deal with most Assassin Bears is by shooting them with the regular Cat Cannon (at the right timing). This usually kills the Assassin Bears before they reach your base if you shoot it fast enough. However, the Cat Cannon Attack Power must be Level 10 or higher, because the Assassin Bears have at least 550 health.
Destroying the enemy base - Assassin Bear is not a boss with some exceptions; therefore destroying the base fast enough will result in the Assassin Bear not spawning at all. Even if he spawns, any Uber Rare Cat with lots of health can smash the base behind him.
Lion Cat/Crazed Cow Cat/Express Cat/Cat Gang/Sanada Yukimura/Awakened Bahamut Cat/Mr. - These cats have very fast speed, and even though Assassin Bear has more range than all of them, the Assassin Bear will charge through them while they are knocked back, as long as there are NO other cats behind/in front of them. While he barrels forward, the fast-attacking cat can often strike before being knocked back again and one-shot kill the Assassin Bear.
ManicJamiera Cat, Cats in the Cradle and Shinji Cat are all capable of reaching and punching down an Assassin Bear if there are no enemies in the way. However, if there is a peon along the way and their punches activate a wave attack, that wave can kill multiple Assassin Bears as well as those at higher strength magnifications.
Balalan Pasalan is one of the few Cats in the game that cannot one-shot kill the Assassin Bear at max level. Despite this, he has more range, and a 100% stop chance. When he stops the Assassin Bear, your cats can and will kill him due to his low health. As long as you have strong meatshields, this can help in timed stages.
Island Cat/Crazed Whale Cat can easily take out Assassin Bear if there is nothing else but Crazed Whales on the screen. Assassin Bear will knockback Crazed Whale a few times, but if you have multiple on screen, the Whales behind will be able to land a hit, killing Assassin Bear. This method is only recommended in Challenge Mode and Twilight Poachers.
As long as there are no other enemies in between, you can send out one Zamboney Cat, which at Level 30 has enough health (68,000) and damage (8,500) at Level 30 to tank 23 hits from a regular Assassin Bear or kill one under 1500% magnification.
Assassin Bear is the only Black enemy to have less health than its original variant.
Assassin Bear moves so fast that if he knocks back a unit, he can move behind them. This is due to the fact that the hitbox of the cat disappears long enough for Assassin Bear to go past the inactive hit box before the knockback animation ends.
Along with Huge Hermit, Assassin Bear has the shortest backswing duration in the game, even shorter than that of Bores and Cyclones.