Done

• Keeping track of 16 High Scores for the 16 QUADRANT & LEVEL combinations (only for games staring at SECTOR 1)
• Additional optimizations from Chris saved 172 bytes
• Spy Ship changed to appear after a set number of formations have launched.
  * 3 formations for sectors 1 & 2
  * 2 formations for sectors 3 & 4
  * 1 formation for sectors 5 & 6
  * 0 formations for sectors 7+
• Condition Red triggered if player is avoiding the stations.
  * 60 seconds kids
  * 45 seconds easy
  * 30 seconds normal
  * 15 seconds hard
• Tweaked Spy Ship to hopefully prevent Red Alert from being triggered when it has more passes to make.
• Fixed bug where you earned an extra ship at 100,000, it should have been at 140,000 - forgot to use BCD addition when setting up the next score to check for!
  * 0x70000 + 0x70000 = 0x0E0000 (regular addition)
  * 0x70000 + 0x70000 = 0x140000 (BCD addition)
  

• Fine-Tune level progression, see spreadsheet rampup.ods.
• beginning of next sector (not new game) and next ship - need a delay to show radar before the ship starts moving.
• Need a longer pause after player's ship is destroyed - not needed for final ship as GAME OVER sequence handles that.
• Nathan spotted a collision detection glitch, see details page 9 of Draconian Sound Effects PM. I've not been able to recreate
• Remaining sound effects from ieposta
• Alert! Alert! Seems to sound when a new threat is sighted - whether a ship or a space station. But it doesn't repeat for each one.