Wolfenstein 3D was one of my favorite games back when I had a GBA.
Back then, I thought it was awesome. But, now, I think it's a bit bad.
First of all, the graphics are bad and choppy. The graphics can also glitch easily. However, the graphics are almost the same as the DOS version.
The sound is horrible and a bit unclear. But the thing that ruined everything was no music. There isn't any music at all.
All of the other GBA games had music, so why couldn't this game have music?
With no music, it gets boring and lowers the level of addictiveness.
You take control of B.J. Blazokowicz and your objective is to escape from Castle Wolfenstein and kill any soldiers, marines, officers, blood-thirsty dogs, and... mutants? 
At the end of each episode you have to fight the boss. You fight Hitler at the end of episode 3. 
Episode 3 was supposed to be the end but, they included the nocturnal missions as well. 
There's also secret levels. I don't know how you get to the secret levels so, don't ask me.
The last thing I'm going to talk about is about the difficulty.
It really depends on your selection. If you choose "Daddy, Can I Play?" then the levels are so easy that even a baby could do it.
If you pick "Don't hurt me" the stages are easy as pie. If you select "Bring It On!", it's the average difficulty.
And, if you're curious and choose "I am Death Incarnate"... Good Luck.
Overall, the GBA version of Wolfenstein 3D is OK.

This review is very clustered as it is in one paragraph with each sentence occupying a single line. You only slightly touch upon each of the subject, and while it is concise, it is not informative enough.

You really should put space between each section. It's hard to read one bid cluster. Maybe you could also try and make it a little longer. 
Other than that this review seems fine.

aquabludolphin18:



I totally agree that the lack of music would have been a serious problem for gameboy customers, and it's an annoyance for vizzed players...



If you must have background music, you could try the Super Nintendo port (also on vizzed).  But be warned, there is no blood, no Nazi paraphernalia, no Hitler, the music is weak, and there is a much less faithful graphical presentation.  



Overall, the GBA is the best option I could currently find on Vizzed, though you may consider opening Pandora in a different window.  The only task remaining is to choose an internet radio station suitable for warfare against the Nazis and mutants... I humbly suggest Celine Dion would fit the bill nicely.