Originally Posted by
Dangerboy
3DOs Tubes should be just like the Sega CD version - you had to press the direction AND a button to make the turn. The 4 directions are referenced from Catfish as hands on the clock:
12 (Up), 3 (Right), 6 (Down), 9 / Niner (Left)
Essentially when you see the arrow blinking of the direction you want, you hold the direction AND the Button, and if done correctly, you'll see that flashing arrow stop blinking to confirm your choice.
If it's like the Sega CD, it's probably A or C + the direction, if B is fire.
The reason for the double button press is so the game knows you're trying to change directions rather than move the cursor to shoot something.