If you attack "Kangaroo Champ" with "Berserk Gorilla" while "Final Attack Orders" is on the field, "Berserk Gorilla" is changed to Defense Position due to "Kangaroo Champ", and is destroyed by its own effect before it can be changed to Attack Position again.

If "Kangaroo Champ" attacks a Flip Effect Monster, "Kangaroo Champ" is Step 1 of the chain and the Flip Effect Monster is Step 2.

If your opponent's monster is destroyed during damage calculation then you cannot apply the effect of "Kangaroo Champ".

The effect of "Kangaroo Champ" can be chained to. After damage calculation, it starts a new chain.