|Location||List of Reserve Tanks|
|Effect||Gives reserve energy|
Reserve Tanks give Samus a pool of reserve energy. Each Reserve Tank increases this pool by 100 energy. Acquiring energy drops while at full main (or Energy Tank) energy will add energy to this pool.
Energy can be recovered from the Reserve Tanks either automatically when Samus's energy reaches zero, or manually from the Inventory Screen.
Although the automatic refill from Reserve Tanks will interrupt gameplay, certain objects such as particles from Charge Beam Combos are not interrupted by this pause (although they will not interact with objects until the Reserve Tank interruption is over), nor is the in-game timer.
Reserve Tanks can be manually abused with pausing to lengthen Samus's lifespan during perilous "hell runs", such as those performed in a Reverse Boss Order run.
See complete List of Items