Power Chips
170 points (2000 points if erased by the Enemy Eraser). Power Chips are what drive the Zanac's standard gun upgrades. The first five that you collect upgrade your gun's power. Any chips that you collect after five will not upgrade your weapons unless you collect 13 more while sticking with special weapon 0. Every time you collect a power chip, you will be granted one second of invulnerability. You can use this time to crash into other objects without harm.
Boxes
500 points. Boxes will appear on the screen from time to time. They typically occur in threes, but it is not uncommon for them to appear alone as well. Boxes can have three different contents. Either they are empty, or they contain a Power Chip, or they contain two bullets that will fly forward when the box is destroyed. Boxes take five shots to completely destroy. However, you can determine the contents of the box after shooting it only three times. The box will begin to blink after taking three shots. If it flashes yellow, it contains bullets. The Zanac ship will only survive a collision with a box if it contains a Power Chip.
Sato (Reconnaissance Craft)
500 points. Sato crafts dive halfway down the opposite side of the screen that the Zanac currently occupies. They stop for a brief moment before traveling back up to the top of the screen. If you destroy them, the power level of the enemy will decrease slightly. Additionally, if you have more than 10 power chips, the Sato will transform into a Cargo with your current special weapon when you destroy it, in exchange for 10 power chips. Occasionally, they will tranform into Blue Landers under the right conditions when you shoot it. If you shoot the very first Sato at the beginning of the game with your special weapon without ever firing your standard gun, it will transform into a Blue Lander.
The conditions to make a Blue Lander appear are technically simple, but complicated to explain. The formula, for those who wish to know, is if the number of standard shots fired since the beginning of the game, modded by 64 (i.e. divide by 64 and take the remainder), is equal to the 1000's digit of the score. This means you only have a 10 in 64 chance, since the 1000's digit can only ever be 0 through 9.
The Eraser
When you shoot a statue on the ground called an ICON you release an ENEMY ERASER, a ball of energy that when touched clears the screen of all aerial items except Special Weapon upgrades -- it even removes any POWER CHIPs and BOXes. Most ICONs are Type 1, which have slit eyes and release normal ERASERs. Once per level, you will encounter a Type 2 icon, which has a a big grin. If you immediately come into contact with the ERASER it releases, it will act as a normal ERASER. However, if you wait a few seconds the center of the ERASER will disappear. Now, when you contact the ERASER you will instead be warped to another level!
The Fairy
Once in a while if you shoot a square BUILDING on the ground, a FAIRY will emerge. She looks just like the fairy from the Legend of Zelda. When you touch the FAIRY, she will clear the screen just like an ERASER. After that, she will hang around until you reach the next base. The base will be automatically destroyed as soon as the timer starts; you will collect the normal bonus and then the FAIRY will fly away.