Bonus boxes appear on all game maps except the T-1 map, where they are only available during the Checkout event.
The number and type of rewards in the bonus boxes vary depending on the map on which they are collected.
Overview of Bonus Box Rewards by Level/Map

Green = reward can drop on this map and level; Red = reward not in drop pool.
Level 1 Bonus Boxes drop
Reward type |
Amount |
Drop rate |
BTC |
100 - 700 |
40 % |
PLT |
10 - 50 |
10 % |
RLX-1 |
10 - 70 |
30 % |
GLX-2 |
5 - 40 |
20 % |
Level 2 Bonus Boxes drop
Reward type |
Amount |
Drop rate |
BTC |
100 - 800 |
40 % |
PLT |
10 - 60 |
10 % |
RLX-1 |
10 - 70 |
25 % |
GLX-2 |
5 - 40 |
15 % |
BLX-3 |
15 - 55 |
5 % |
GLX-2-AS |
15 - 55 |
5 % |
Level 3 Bonus Boxes drop
Level 4 Bonus Boxes drop
Level 5 Bonus Boxes drop
Level 6 Bonus Boxes drop