bossbattle

noun
UK /ˈbɒsˌbætəl/
US /ˈbɔːsˌbætəl/

A boss battle is a big fight against a very strong enemy in a game.

I finally beat the boss battle after trying ten times.


OTHER MEANINGS

2. A difficult test or challenge that feels like a game boss fight.

The final exam felt like a boss battle.

3. A showdown between two powerful rivals.

The chess match turned into a boss battle between the two champions.

4. A big, exciting event that ends a series.

The last episode was a real boss battle for the whole team.