PC : Warning Forever v1.07

Gameplay
The premise of the game is to fight a constant stream of bosses. The gameplay is broken into stages; each stage is a single boss battle. To progress to the next stage, the boss must be completely destroyed within the time limit. The game starts with a default time limit of 180 seconds (which can be changed to the maximum of 999 seconds in Options), with 30 seconds being gained for every boss defeated. 20 seconds are lost every time the player is destroyed.

The main gameplay feature is how the bosses change from stage to stage. Based on how you fight a boss, the next boss will adapt itself to defend against your strategies, and prey on your weaknesses. For example, if you destroy the front part of the boss first, it will increase armor on the front. Likewise, if you are killed by a certain kind of weapon, but still defeat the boss, the next boss will probably have more of that weapon.

The player flies a relatively small green ship. There are no power-ups - the player's only weapon is a very rapid-fire revolving cannon which can fire in any direction, and widen or concentrate its projectile spread.

As is common in manic shooters, the area of the player's ship vulnerable to collisions is much smaller than the ship itself. This enables the ship to squeeze through small gaps.


Boss evolution
The unevolved Pure Heart, which is made up of the core and four corner pieces.The initial form of the boss is called the Pure Heart. The Pure Heart will take on new characteristics in response to the player's assault.

The top and bottom halves will gain characteristics based on the order of destruction of parts that are attached to exactly one other part when no other parts attached to the same part have been destroyed, provided that there are available extensions to add for that half at that time. The boss always has a vertical line of symmetry, so any destruction on one side of the boss is considered to have happened on the other side as well for extension purposes.

The Pure Heart has 8 vulcan cannons, and 4 corner pieces. Because the corner pieces started attached to multiple parts, their destruction has no bearing on extension placement. The guns, however, do, being each attached to a single corner piece. Now we destroy the gun that is lowest on the right. By the symmetry rule, the gun on the left that matches is also considered destroyed. The boss will be extended at that point on both sides next round. Destruction of the other gun attached to that corner piece at this time will not cause an extension, because an extension is already being made to that piece. Destruction of the guns on the opposing piece also has no effect because the extension for that piece has already been chosen.

The next form adds a new body piece and two guns to each side of the bottom. If we destroy one of the original guns left on the bottom before destroying the new body piece, it will cause an extension. However, if the new bodypiece is destroyed first, then the destruction of the original gun will NOT cause an extension, because another piece that was attached to the one it was destroyed first. However, there will be an extension on the new body piece, unless it is somehow destroyed without destroying either of its guns.

Note that if the original gun is destroyed first, and then one of the ones attached to the new piece is destroyed, that is two extensions.

Once a certain number of extensions have been made to a side (top or bottom), that side evolves.


Game modes
180 seconds - The normal, time-limited mode.
Three Ships - No time limit. The player begins with three lives, and gains an extra life for every hundred pieces blasted off a boss.
Five Minute attack - The player has a time limit of five minutes to get as far as possible.
Sudden Death - The player has one life and no time limit.