There's also a table of data starting at $2C12 that contains a dozen other game-play parameters, probably including timing values and possibly maximum shot counts. The data pulled from this table is modified depending on the difficulty level selected in the game setup screens. Nine of these variables generally decrease as the wave increases, and the other 3 generally increase. I suspect the ones that decrease are timing variables, so that the game speeds up the longer you play.
| Wave | Grunts | Electrodes | Mommies | Daddies | Mikeys | Hulks | Brains | Spheroids | Quarks |
| 1 | 15 | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| 2 | 17 | 15 | 1 | 1 | 1 | 5 | 0 | 1 | 0 |
| 3 | 22 | 25 | 2 | 2 | 2 | 6 | 0 | 3 | 0 |
| 4 | 34 | 25 | 2 | 2 | 2 | 7 | 0 | 4 | 0 |
| 5 | 20 | 20 | 15 | 0 | 1 | 0 | 15 | 1 | 0 |
| 6 | 32 | 25 | 3 | 3 | 3 | 7 | 0 | 4 | 0 |
| 7 | 0 | 0 | 4 | 4 | 4 | 12 | 0 | 0 | 10 |
| 8 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 0 |
| 9 | 60 | 0 | 3 | 3 | 3 | 4 | 0 | 5 | 0 |
| 10 | 25 | 20 | 0 | 22 | 0 | 0 | 20 | 1 | 0 |
| 11 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 0 |
| 12 | 0 | 0 | 3 | 3 | 3 | 13 | 0 | 0 | 12 |
| 13 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 0 |
| 14 | 27 | 5 | 5 | 5 | 5 | 20 | 0 | 2 | 0 |
| 15 | 25 | 20 | 0 | 0 | 22 | 2 | 20 | 1 | 0 |
| 16 | 35 | 25 | 3 | 3 | 3 | 3 | 0 | 5 | 0 |
| 17 | 0 | 0 | 3 | 3 | 3 | 14 | 0 | 0 | 12 |
| 18 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 0 |
| 19 | 70 | 0 | 3 | 3 | 3 | 3 | 0 | 5 | 0 |
| 20 | 25 | 20 | 8 | 8 | 8 | 2 | 20 | 2 | 0 |
| 21 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 0 |
| 22 | 0 | 0 | 3 | 3 | 3 | 15 | 0 | 0 | 12 |
| 23 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 0 |
| 24 | 0 | 0 | 3 | 3 | 3 | 13 | 0 | 6 | 7 |
| 25 | 25 | 20 | 25 | 0 | 1 | 1 | 21 | 1 | 0 |
| 26 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 0 |
| 27 | 0 | 0 | 3 | 3 | 3 | 16 | 0 | 0 | 12 |
| 28 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 1 |
| 29 | 75 | 0 | 3 | 3 | 3 | 4 | 0 | 5 | 1 |
| 30 | 25 | 20 | 0 | 25 | 0 | 1 | 22 | 1 | 1 |
| 31 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 1 |
| 32 | 0 | 0 | 3 | 3 | 3 | 16 | 0 | 0 | 13 |
| 33 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 1 |
| 34 | 30 | 0 | 3 | 3 | 3 | 25 | 0 | 2 | 2 |
| 35 | 27 | 15 | 0 | 0 | 25 | 2 | 23 | 1 | 2 |
| 36 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 2 |
| 37 | 0 | 0 | 3 | 3 | 3 | 16 | 0 | 0 | 14 |
| 38 | 35 | 25 | 3 | 3 | 3 | 8 | 0 | 5 | 2 |
| 39 | 80 | 0 | 3 | 3 | 3 | 6 | 0 | 5 | 1 |
| 40 | 30 | 15 | 10 | 10 | 10 | 2 | 25 | 1 | 1 |