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Answer to: Parts of character sprites in game disappear regardless of gameThis is a normal limitation of the NES hardware. From here: On the NES this happens because the Picture Processing Unit (PPU) in the NES only supports a certain number of 8x8 or 8x16 sprites. For the PPU this limit is eight per scanline and a maximum of 64 sprites in total. Because of this whenever the system tries to draw another sprite when there's already eight sprites present on the same scanline the PPU simply does not draw that sprite, and instead sets a flag noting that an "overflow" of sprites has happened. Because of how the PPU works it would be very annoying if a projectile completely disappeared because there were too many sprites on screen and it was drawn too late (after 8 other sprites). To combat this the game developers for the NES used the flag mentioned above as an indication that they had to "shuffle" the sprite rendering order. Re-ordering the sprites simply made the sprites on the same scanline draw in a different order than the previous frame, causing a different sprite to be left out t...
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Do you know if there is any point on the motherboard where you could attach an external antenna? Or is the internal antenna removable to be replaced with an external or hacked to connect via a cable run to the outside of the device?
Did you happen to take a picture of the underside of the motherboard?
Thanks!