Robin Hood

[necronom]

I've been playing Robin Hood today and once I worked out that Block 5 needs to be write protected I could get past screen one, but on the third time I got to screen two the gate doesn't open. I tried again and the same thing happened. It makes the 'level complete' noise, the people stop appearing and the arrows start shooting across the doorway, but the gate is down and it kills me on contact.
Is this a known bug, should it be opening, or am I doing something wrong?

Here is a video of it happening:
https://youtu.be/Ec08GJD7bJo

[nbla000]

By using the zimmers version, I've discovered it has a ram protection on $A535

Code: Select all

a533  A2 00       LDX #$00
a535  8E 65 A6    STX $A665 <---- BLK5, error if work in RAM not protected.
a538  CA          DEX
a539  86 1D       STX $1D

To fix this protection, use this command before the reset.
POKE42295,192

It changes the code in this way:

Code: Select all

a533  A2 00       LDX #$00
a535  8E 65 C0    STX $C065 <---- Basic vectors in ROM, no problem.
a538  CA          DEX
a539  86 1D       STX $1D

Since I wasn't able to go to the next level, I've discovered also a way to have infinite lives.

Code: Select all

POKE42049,165
POKE42513,165
POKE43232,165

and Infinite arrows:

Code: Select all

POKE41827,165

But the problem still remain...

So I've tried it in ROM but with same results, so or it is a bug of the original game or a bad dump.

Istruction attached.

[necronom]

Thanks for taking a look. I'd tried it several times and got to the problem gate most attempts, but it always got stuck.
I wonder if it's a bad dump, like you said. I'd be surprised if it shipped like that, as it only took me about 3 goes to get that far. Someone must have played it before it was sent off to be manufactured!