1. First of all, in the main process of biochemical mutation, players will automatically get the Mark Mecha when they do the tasks related to npc Hubert.

2. Secondly, it consumes a box of compressor oil and energy to upgrade the Mark Mecha, and upgrade it 10 times.

3. Finally, Mark Mecha can modify the Mecha by consuming chips. For example, upgrading from the first-order electromagnetic tower to the second-order flame thrower requires upgrading of electrode chips, and upgrading from the second-order to the third-order requires upgrading of spark chips.