Its a "Dive Bar", and those of us who searched the world over for Dive Bars can appreciate the unique quality in all. BTW, my highest rated "Dive Bar" in the world so far is the Rudder Room in Oxnard, CA, stop by if your ever in the area.
I have to say I like the crowd at Bullpen. My friends and I were there only 10 mins and one local was buying a round for all of us. It is full of locals, and I consider myself one now since I escaped the onslaught of rich zonies and tourists taking over Coronado to now call IB my home. The bartender Tracy is great, and somehow remembered our names after one stop over. So if you like Dive bars you will like Bullpen. Really cool laid back people. BTW I resent the comment over 30......isn't 30 the new 20? So if you need to have 50 taps made from every microbrew from here to Portland, and drink your Beer with your pinkie out, you should stay far away, that bar stool is reserved for me.
This place is scary. My friends thought it would be fun to check out this bar last night. I question their judgment. We strolled in to a cloud of awkwardness. This tiny bar was 90% regulars who all seemed to be bombed already. I'm good with being tanked by 8pm, but this was too much. The bar was small and had a stumble through layout. Nice to see pool tables, darts, jukebox and a couple touchscreen systems. However, I was so out of my element here that I didn't leave my bar stool. The beer was cheap. I observed some pretty stiff cocktails being served. The crowed was predominately country. The jukebox continued with country anthems, one after another. I knew it was time to bail when my buddy thought it would be funny to spend his jukebox play on Ice Cube's Greatest Hits. We promptly paid and left.
One last thing I just had to mention. This place was so seedy that at one point, a female patron swigged her drink and then lit her cigarette in the bar. This seemed to bother no one there.