Starting at kill 2, a player normally receives a bonus of 20 points. It needs to be explained thoroughly to understand it, so let's start with kill 2 and explain it: This second table deals with the bonus received once a combo chest is activated. RE5 Mercenaries Combo System (with Combo Chests included) The bonus points for the combo are not added up until the combo is broken or until the run ends at 150 combo. The bonus received from chaining kills gives a player a fixed rate of 1000 points per normal enemy and 7000 points per boss enemy starting at 50 combo all the way until 150 combo. Normal enemies and boss enemies both give a player a specific amount of bonus points depending on the current kills that have been chained. Each kill must be chained within 10 seconds of the next in order to continue the combo chain. The current combo will appear on the right hand side of the screen. Starting from kill 2, a player will receive bonus points per enemy that is killed so long as the combo chain is kept going through enemy kills. The table above shows the standard combo system for Resident Evil 5: The Mercenaries. RE5 Mercenaries Combo System (Standard Combo)