Grobda/Gameplay

Controls

 * Joystick: Use the 8-way joystick, to direct Grobda around each of the ninety-nine arenas. It starts out rather slowly at the beginning, but will increase speed as the game progresses.
 * Firing Button: Use this button to make Grobda fire shots at the enemies (it did could not do this in Xevious). Firing will have no effect on the Energy Gauge at the bottom of the screen.
 * Shield Button: Use this button to activate Grobda's shield. Unlike firing, activating the shield will slowly drain the Energy Gauge at the bottom of the screen and eventually empty it out.
 * 1 or 2 Player Buttons: Push these buttons to begin a 1 or 2 player game.

Grobda
The protagonist of the game. In its only appearance as a heroic character, its goal is to kill every enemy in all ninety-nine arenas of the game. It will lose one life whenever it is hit by a bullet, or caught in an the blast radius of an explosion. If this should happen, any enemies that were killed on the current round before Grobda died will be resurrected upon its return.

Enemies
Purple Tank - These tanks only take one hit to kill, and are present on almost every round of the game except 15, 16, 21, 24, 25, 28, 50, 63, 81, 82, 83, 84, 85, 86 and 87. 100 points (1st kill), 500 points (2nd kill), 900 points (3rd kill), 1300 points (4th kill), 1700 points (5th kill), 2100 points (6th kill), 2500 points (7th kill), 2900 points (8th kill), 3300 points (9th kill).

Orange Hyper Tank - These shielded tanks are present on almost every round of the game after rd 5 except 23, 32, 40, 42, 44, 46, 48, 49, 50, 51, 54, 56, 89, 91, 95 and 96. 220 points (1st kill), 1100 points (2nd kill), 1980 points (3rd kill), 2860 points (4th kill), 3740 points (5th kill), 4620 points (6th kill), 5500 points (7th kill), 6830 points (8th kill), 7260 points (9th kill).

Yellow Hyper Tank - These shielded tanks are present on almost every round of the game after 11 except 15, 16, 28, 30, 36, 38, 39, 50, 52, 61, 69, 81, 83 and 86. 330 points (1st kill), 2310 points (2nd kill), 4290 points (3rd kill), 6270 points (4th kill), 8250 points (5th kill), 10230 points (6th kill), 12210 points (7th kill), 14190 points (8th kill), rd 16170 points (9th kill).

Green Furossa - Are on most rounds after 9 except 27, 28, 29, 34, 35, 36, 47, 54, 57, 59, 62, 64, 65, 66, 67, 70, 74, 76, 78, 80, 89, 90, 91, 92, 93, 94, 95, 96, 98 and 99. 410 points (1st kill), 2050 points (2nd kill), 3690 points (3rd kill), 5330 points (4th kill), 6970 points (5th kill), 8610 points (6th kill), 10250 points (7th kill), 11890 points (8th kill), 13530 points (9th kill).

Brown Furossa - These projectile-firing land mines are present on most rounds of the game after 19 except 23, 30, 38, 40, 43, 45, 48, 50, 52, 58, 68, 77 and 86. 520 points (1st kill), 2600 points (2nd kill), 4680 points (3rd kill), 6760 points (4th kill), 8840 points (5th kill), 10920 points (6th kill), 13000 points (7th kill), 15080 points (8th kill), rd 17160 points (9th kill).

Fortress - Are only present on rounds 30, 38, 43, 53, 62, 68, 69, 71, 72, 75, 80, 82, 86, 87, 88, 90, 94, 98 and 99. Some of them are stationary, but others are mobile. 3140 points.