From pinball.org:

• Get the extra balls! They are easy to get, so get them!
• Get MAP awards while locking balls along the way.
• Play multiballs as they come.
• Collect mystery award after spelling ZINJ.
• Spell GRAY and defeat lower gorilla for big awards.

• Hit the kickback targets to get 10M + 5M (standard skill shot)
• Note that the kickback targets might be roaming
• Or go for Super Skill Shot in the left outlane for 25M

• Collect diamonds to light locks (number of diamonds required: 4, 8, 12, ...)
• Hit all lit diamond shots to relight diamond shots
• Hitting the bottom 2 saucers will relight a diamond shot (only when those saucers are not already lit for diamonds)
• You can earn diamonds through other awards and modes
• Every 100 diamonds awards Super Multiball (Wizard Mode)

• Lock 3 balls to start Multiball
• Keep in mind you need a certain number of diamonds to light locks: 4, 8, 12, ...

Once multiball is started:

• Hit ramps for Jackpots
• If a ball makes it into the back AMY saucer, Super Jackpot is lit for ~20 seconds
• Shoot the upper–upper orbit (Super Score) to collect Super Jackpot

• Shoot the left ramp to collect M-A-P letters
• Once collected, shoot the MAP saucer to collect an award
• Once a route is completed, the map progresses to the next route
• Completing all routes is rare

• Shoot the upper orbit to collect A-M-Y letters
• Completing A-M-Y starts a timed mode
• Shoot flashing major shots (ramps/orbits) for increasing values
• Completing the mode awards diamonds and progresses toward MAP and multiball features
• Not the highest scoring mode, but very helpful for diamond progression

• Spell G-R-A-Y to start the mini playfield
• Spell C-O-N-G-O
• Each target is worth 10M
• Do not shoot randomly — there is definite strategy

Spelling CONGO awards the following in order:

• 20 Diamonds
• Multiball
• 20 Diamonds
• Light Extra Ball (Left)
• 50M (repeats for subsequent completions)

Spell Z-I-N-J to light Mystery at the scoop.

• Hit the "We Are Watching You" targets 5 times to light Video Mode
• Start Video Mode at the scoop
• Avoid rocks and hippos
• Hold flippers — do not tap
• Timing is more important than speed

• This is always lit, except during multiball or timed modes
• Starts a video-style mode
• Always go left
• Hope you make it far — it's mostly risk/reward

• Timed mode lasting about 20 seconds
• While active, you can't really do anything else
• Shoot the satellite repeatedly
• Scores very little and is mostly a stall mode

Extra Balls can be lit by:

• MAP award → Left orbit
• 3 Volcano Ramps (operator setting) → Volcano Ramp (Right)
• Mystery → Left orbit
• GRAY Gorilla defeated 4th time → Left orbit
• Complete Bonus 5X → Left orbit

• 4-ball multiball
• Ramps and lower saucers are worth 10M
• Super Jackpot for defeating the gorilla in the lower playfield for 50M
• Relight Super Jackpot by scoring a regular Jackpot