Portals are the boom slingers equivalent of maps. As of right now maps reset every 24 hours at 7pm GBT
There are many portals in the game, here they are:
Dark cave-Has a bunch of enclosed maps with indestructible blocks and is notorious for people using shield and glue to stall the game as much as possible.
Cupid- Had a recolour from a yellow/dark red colour for a more valentine feeling of light blue and light pink, also has a secret cupid boss, more info on the Secrets page.
Blue cave-Is the first map you play when booting up the game, the light follows you through the cave when moving and also has statues embedded to the ground.
Buddha- Has some text of common phrases in the sky in other foreign languages and has a Unicorn skeleton Easter egg.
Seagull beach- A beach themed portal where its known for a lot of its 1 move kills, one of the more detailed maps of the game.
Breakfast- Otherwise known as milk map is a portal where the milk (kill zone) is lifted by half a block at the end of each round, you can also get a secret hat here, more info on Secrets page.
Hanami- A Japanese themed mountainous portal.
Neo city- A futuristic city themed portal also made by a fan, Kuroi by winning a community event.
Winter land- Ice themed level where the ice is slippery, known for horrible 1v1 maps and also inspired by Whofrom.
Blue skies-Sea themed level.
Bee hive-Had a recolour in the past from a reddish pink to a honey yellow and also now has bees' flying around in the background.
Troja- Classic map with an Trojan feeling.
Cubes-has cool secret maps with embedded messages such as: Banned.
Skull- had a recolour in the past, used to be red,like the skull character, more in Character page, now its blue.
(unused/unavailable)
these maps could be playing in previous versions (1.7.4)
Xmas- Available only during the winter season, where you can unlock the secret Santa hat, more info on the Hat page.
Tanagram- based on a chinese art technique used to make shapes out of squares and triangles facing 45 Degrees
Macaroni- Macaroni!