1) There are a total of 115 different shapes that can be used for a skin. Of these shapes, 6 of them are of an alien. Due to this, if a single random skin shape was chosen by a player, there would be a 5.2% chance it would be an alien.
This is an image of the shape picker, with all of the 115 shapes.
2) On March 6, 2017, Chaz added a feature within Football Mode, allowing for players to attract the ball towards them, upon holding the "Z" key. This feature was removed only the next day, due to it not being popular within the player base.
This is an image of two players playing in Football mode.
3) On September 13, 2016, Chaz added particles into the game, that are visible when a player collides with a platform. Following this, on September 21, 2016, Chaz added more particles, this time for when a player dies by going off the screen.
An image of a player hitting a platform, causing particles.
4) In Bonk.io, players can set the max player count to any whole number between 0 and 8, any numbers outside of this cannot be entered. However, by setting the max player count to 0, the game creates an unnamed room, that doesn't appear on the room list, with only you being able to be within it.
This has been fixed in Bonk 2, but now you can choose to make your rooms unlisted, regardless of the max player amount, letting others join through server link.
An image of a room being created with '0 Max Players.'
5) The first map with a capture zone within it was "Capture Zone Test" by Chaz, which was released on October 26, 2016, for the community's imput on it. The map was made before capture zones were publicly accessible within the Map Editor, on October 28, 2016. The map has since been deleted, for unknown reasons.
This is an image of how a capture zone appears in the Map Editor, in front of a blank background.