Tank-o-box - 1 Player Extra Mode (Impossible Bug Fix Patch)

This patch fixes the bug in extra mode level 43 (The Secret Object, see 1:20:23) where the said object still exists in this mode, making the task of protecting it impossible and the player can&progress beyond this level. Beside that bug, this patch also significantly changed a lot of other things in this mode to make it more bearable to play. Such changes are as follows: - Level 1 (Farm 0:10) and Level 15 (Duel 23:45) will always generate star bonus when enemy tank is killed. - Enemy tank lineup are reduced, most of the levels now only spawn the tank that the arcade mode counterpart also spawn (With the exception of some last levels, or the Big Wave - see below). - Level 16-20 (The 1st to 5th wave 24:30) are merged into one level called "The Big Wave", as a result, the number of tank and type of tank are increased to compensate the removed levels. - "The Big Wave" also doubles the amount of enemy tank spawning spot, from 10 to 20. This enemy spawning spot increase is also seen in some levels such as Level 44 (The Parade 1:23:38) or Level 55 (The Last Battle 1:47:32). - Initial amount of spawning tank is still 10, with some exceptions like Level 38 (Two HQs, the rocket launcher is reduced to 5 1:07:43) or Level 51 (Close Neighborhood, each tank is increased to 20 1:39:35). - The total lives of enemy tank is no longer fixed at 15. Instead, it ranges from 10 to 35 depending on the level. - The green double-turret tank also appears in Level 53 (Airstrike Efficiency 1:42:58...