u can also get a homebrew flamethrower from a guy named pyro perry at street four near the brand new abandon warehouse but u need a leaveblower,40 oz.,and a zipo lighter.to get a leaveblower just buy it from the hardware store and to get the 40 oz. just buy it from 11-7 or get it from this ninja guy near the penthouse at a certain time.you can get the zipo lighter from steel and hawks or the contraband salesman at street 2.if u want to upgrade ,you need enough strenth and beat the sewer king at night and then beat the sewer dungeon near the mansion and give the fuel cell to pyro perry and the next thing u need is a cheap watch and a screwdriver,to get the cheap watch beat one of the sewer people(i forgot which one) or max out the job from new lines inc. and for the screwdriver u can buy it from the hardware store or buy or get a old hot dog and give it to the sewer person near the u of s at some nights or beat up the strong east gangsters near the pent houses. if u want to upgrade again then go to the dangling pianist and take to a guy and if u have enough strenth then, he will give u the keys for the brand new abandoned warehouse and u have to beat it and get a engine or something and u give it back to the guy and he gives it to u back and gives u back your money and then u give it to the alien near city hall and then he will ask u for nano bots so you have to go to the dangling pianist again get buy the benjamin's club card for 50,000$ (unless u have that discount shopper cheat) from the purple guy with a fedora near the women's bathroom and enter and u should see a guy near the slot machines to the right and u buy the nano bots and give the alien the bots and he will give u some solar matter so u give it to pyro perry but you need a 4d hyper cube and well you know how to get it just look at the walkthrough so u give it to him and he fancies up ur flamethrower and there u go thats it