Rescue Squad lightbar

I don't see any current limiting resistors in the Base traces to the transistors.

Thanks I completely forgot about those! Will a 1k resistor be enough?

I also don't see any capacitors on the regulator input/output or decoupling capacitors on the MCU voltage pins.

I wasn't sure if I needed capacitors on the regulator due to the fact that the ATtiny84 I am going to use to flash the LED's in different sequences can handle voltages from 4.5v - 5.5v If I still need these let me know...I am new to this type of stuff! Thanks

for a start the transistors seem to short out your battery

How do I hook up the NPN Transistors? I have the 9v+ flowing into the collector the -(negative) hooked to the emitter and the ATtiny84 switch hooked to the Base.