Slots-o-Fun Solution

It looks like there are a lot of moving pieces in this puzzle because every time the reels are spun the board changes, but there is always a single emoji that is duplicated. What the team needs to do is count the duplicate emoji and then index that into the name of the emoji. For example, in the board above with 4 lobsters and 12 other emoji (there should be no other emoji with duplicates), and the team would want to extract 's'. Teams were also separately given 4 sheets of emoji stickers to allow them to canonically identify all emoji in the puzzle.

Extract a letter for each spin on the slot machine to reveal a word, show below with the country associated with the slot machine.

Australia
Lowest
Panama
Button
Egypt
Second
South Africa
Column
Rusia
TajMahal
Greece
Third
Brazil
Row
Indonesia
Final
Cuba
Tower
Zambia
Pyramids
Japan
Bottom
Spain
Line
New Zealand
Leftmost
Nigeria
Pillar
Mexico
HooverDam
Canada
Upper
India
Diagonal
Peru
Penultimate
Norway
Obelisk
Madagascar
Chichenitza
Chile
Select
Ukraine
Two
China
Highest
United States
Across
Fiji
Parthenon

Each row gives an instruction identifying a slot machine, by a landmark from that country, and two arrows on that slot machine to select.

CountryArrow 1Arrow2
IndiaLower DiagColumn 2
EgyptRow 3Column 4
USRow 4Column 1
MexicoUpper DiagColumn 3
GreeceRow 1Row 2

When those 5 slot machines have only these allows selected, the puzzle is solved!